Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Ghosh, S.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (67/67 displayed)

  • 2024Influence of Xe + and Ga + milling species on the cathodoluminescence of wurtzite and zincblende GaNcitations
  • 2023Enhancement of strength in laser-joined Al-TRIP and Si-TRIP steels:microstructural insights and deformation analysiscitations
  • 2023Compositional Mapping of the AlGaN Alloy Composition in Graded Buffer Structures Using Cathodoluminescencecitations
  • 2023Nanostructured bainite transformation characteristics in medium-carbon steel subjected to ausforming and isothermal holding below martensite start temperaturecitations
  • 2023Micromechanical analysis and finite element modelling of laser-welded 5-mm-thick dissimilar joints between 316L stainless steel and low-alloyed ultra-high-strength steelcitations
  • 2023Dynamic softening kinetics of Al0.3CoCrFeNi high-entropy alloy during high temperature compression and its correlation with the evolving microstructure and micro-texturecitations
  • 2023Atomic layer etching of nanowires using conventional reactive ion etching tool1citations
  • 2023Rapid tempering of a medium-carbon martensitic steel:in-depth exploration of the microstructure – mechanical property evolutioncitations
  • 2023A combined 3D-atomic/nanoscale comprehension and ab initio computation of iron carbide structures tailored in Q&P steels via Si alloyingcitations
  • 2022Atomic scale characterization of carbon partitioning and transition carbide precipitation in a medium carbon steel during quenching and partitioning processcitations
  • 2022Lead (Pb2+) ion sensor development using optical fiber gratings and nanocomposite materials41citations
  • 2022Mechanical performance and formability of laser-welded dissimilar butt joints between medium-Mn stainless steel and high-strength carbon steelcitations
  • 2022Quantitative prediction of yield strength of highly alloyed complex steel using high energy synchrotron X-ray diffractometrycitations
  • 2022Mean-stress sensitivity of an ultrahigh-strength steel under uniaxial and torsional high and very high cycle fatigue loadingcitations
  • 2022Design of tough, ductile direct quenched and partitioned advanced high-strength steel with tailored silicon contentcitations
  • 2022High-speed Erichsen testing of grain-refined 301LN austenitic stainless steel processed by double-reversion annealingcitations
  • 2022Impact toughness of an electron-beam welded 0.2C direct-quenched and partitioned steelcitations
  • 2022Engineering Antimicrobial Polymer Nanocomposites: <i>In Situ</i> Synthesis, Disruption of Polymicrobial Biofilms, and <i>In Vivo</i> Activity.12citations
  • 2022Studying the strengthening mechanisms and mechanical properties of dissimilar laser-welded butt joints of medium-Mn stainless steel and automotive high-strength carbon steelcitations
  • 2022Green synthesis of zero-valent iron nanoparticles and loading effect on activated carbon for furfural adsorption112citations
  • 2022Micro-mechanism associated with very high cycle fatigue crack initiation of advanced DQ&P processed steelcitations
  • 2022Characterization of hot deformation behavior of Al0.3CoCrFeNi high-entropy alloy and development of processing map30citations
  • 2021Hot deformation characteristic and strain dependent constitutive flow stress modelling of Ti + Nb stabilized interstitial free steelcitations
  • 2021Competitive mechanisms occurring during quenching and partitioning of three silicon variants of 0.4 wt.% carbon steelscitations
  • 2021Structural and electronic analysis of bimetallic thiolate complexes of group-5 transition metal ions5citations
  • 2021Nanolath martensite-austenite structures engineered through DQ&P processing for developing tough, ultrahigh strength steelscitations
  • 2021Characteristics of dynamic softening during high temperature deformation of CoCrFeMnNi high-entropy alloy and its correlation with the evolving microstructure and micro-texturecitations
  • 2021Side chain redistribution as a strategy to boost organic electrochemical transistor performance and stability253citations
  • 2021Tensile properties and deformation of AISI 316L additively manufactured with various energy densitiescitations
  • 2021High cycle fatigue performance, crack growth and failure mechanisms of an ultrafine-grained Nb+Ti stabilized, low-C microalloyed steel processed by multiphase controlled rolling and forgingcitations
  • 2021Influence of small defects and nonmetallic inclusions on the high and very high cycle fatigue strength of an ultrahigh-strength steelcitations
  • 2021In-situ quantification and density functional theory elucidation of phase transformation in carbon steel during quenching and partitioning18citations
  • 2021Calibration of Fiber Grating Heavy Metal Ion Sensor Using Artificial Neural Networkcitations
  • 2021Surface mechanical attrition treatment of additively manufactured 316L stainless steel yields gradient nanostructure with superior strength and ductilitycitations
  • 2021A new processing route to develop nano-grained structure of a TRIP-aided austenitic stainless-steel using double reversion fast-heating annealingcitations
  • 2020Flow stress characteristics and design of innovative 3-steps multiphase control thermomechanical processing to produce ultrafine grained bulk steelscitations
  • 2020Fracture toughness characteristics of ultrafine grained Nb–Ti stabilized microalloyed and interstitial free steels processed by advanced multiphase control rollingcitations
  • 2020Improvement of fracture toughness of Ti+Nb stabilized microalloyed and interstitial free steels processed through single phase regime control multiaxial forgingcitations
  • 2019Heterolepic β ‐Ketoiminate Zinc Phenoxide Complexes as Efficient Catalysts for the Ring Opening Polymerization of Lactide25citations
  • 2018Mixed dimension silver nanowires for solution processed, flexible, transparent and conducting electrodes with improved optical and physical properties5citations
  • 2018Design and optimisation of integrated photonic waveguides and sensorscitations
  • 2017Detection of flexibly bound adsorbate using the nonlinear response of quartz crystal resonator driven at high oscillation amplitude2citations
  • 2017A hybrid strain and thermal energy harvester based on an infra-red sensitive Er3+ modified poly(vinylidene fluoride) ferroelectret structure45citations
  • 2016The effect of oxygen vacancies on water wettability of transition metal based SrTiO3 and rare-earth based Lu2O343citations
  • 2016Micro-structural origin of elongation in swift heavy ion irradiated Ni nanoparticles: A combined EXAFS and DFT study12citations
  • 2016Silk fibroin as biomaterial for bone tissue engineering693citations
  • 2015Lamellar eutectic growth with anisotropic interphase boundaries9citations
  • 2013Fe Doped CdTeS Magnetic Quantum Dots for Bioimaging.27citations
  • 2013Mechanical characterization of polyhydroxyalkanoate and poly (lactic acid) blends28citations
  • 2011Genetic variations in the FTO gene are associated with type 2 diabetes and obesity in south Indians (CURES-79).68citations
  • 2011Influence of gate dielectric on the ambipolar characteristics of solution-processed organic field-effect transistors13citations
  • 2011Optimisation of the hot conditioning of carbon steel surfaces of primary heat transport system of Pressurized Heavy Water Reactors using electrochemical impedance spectroscopy12citations
  • 2010Magnetic and field emission studies of atom beam sputtered Ni:SiO(2) granular films10citations
  • 2009Characterisation of the oxide layer on carbon steel during hot conditioning of primary heat transport systems in heavy-water reactors25citations
  • 2008Oriented morphology and enhanced mechanical properties of poly(L-lactic acid) from shear controlled orientation in injection molding35citations
  • 2008Synthesis and characterization of Ni-doped ZnO: A transparent magnetic semiconductor53citations
  • 2008Small-Angle Neutron Scattering of Nanocrystalline Terbium with Random Paramagnetic Susceptibility9citations
  • 2008Bio-inspired mineral growth on porous spherulitic textured poly(L-lactic acid)/bioactive glass composite scaffolds6citations
  • 2008Dynamic mechanical behavior of starch-based scaffolds in dry and physiologically simulated conditions: Effect of porosity and pore size62citations
  • 2008Bi-layered constructs based on poly(l-lactic acid) and starch for tissue engineering of osteochondral defects52citations
  • 2007Compositional analysis of atom beam co-sputtered metal-silica nanocomposites by Rutherford backscattering spectrometry13citations
  • 2007Effect of processing conditions on morphology and mechanical properties of injection-molded poly(L-lactic acid)59citations
  • 2007The double porogen approach as a new technique for the fabrication of interconnected poly(L-lactic acid) and starch based biodegradable scaffolds55citations
  • 2006Osteochondral tissue engineering constructs with a cartilage part made of poly(L-lactic acid) starch blend and a bioactive poly(L-lactic acid) composite layer for subchondral bonecitations
  • 2006Osteochondral tissue engineering constructs with a cartilage part made of poiy(L-lactic acid) / starch blend and a bioactive poly(L-lactic acid) composite layer for subchondral bonecitations
  • 2003Ab initio structure determination of cytochrome c6 by combined reciprocal space-real space approach1citations
  • 2000Branching waveguides with truncated structure and phase matchingcitations

Places of action

Chart of shared publication
Kusch, G.
2 / 13 shared
Loeto, K.
2 / 4 shared
Fairclough, Sm
1 / 11 shared
Kappers, Mj
1 / 16 shared
Griffiths, I.
1 / 5 shared
Young, N.
1 / 7 shared
Oliver, Ra
1 / 17 shared
Wahba, M.
1 / 1 shared
Ahmed, E.
1 / 5 shared
Khosravifard, A.
4 / 6 shared
Hamada, A.
6 / 20 shared
Abd-Elaziem, W.
1 / 4 shared
Allam, T.
1 / 3 shared
Jaskari, M.
7 / 31 shared
Kreins, M.
1 / 1 shared
Oliver, R.
1 / 6 shared
Frentrup, M.
1 / 11 shared
Hinz, A.
1 / 4 shared
Somani, M.
7 / 28 shared
Kaikkonen, P.
2 / 5 shared
Kömi, J.
15 / 92 shared
Newishy, M.
1 / 2 shared
Ali, M.
2 / 47 shared
Järvenpää, A.
6 / 39 shared
Hietala, M.
1 / 13 shared
Patnamsetty, M.
3 / 6 shared
Somani, M. C.
6 / 28 shared
Peura, P.
3 / 8 shared
Richter, K.
1 / 15 shared
Khan, M. B.
1 / 1 shared
Shakeel, Sh
1 / 1 shared
Erbe, A.
1 / 5 shared
Georgiev, Yo M.
1 / 1 shared
Sadeghpour, S.
1 / 10 shared
Latypova, R.
1 / 5 shared
Sainio, J.
2 / 4 shared
Pallaspuro, S.
8 / 24 shared
Javaheri, V.
3 / 37 shared
Sasikala Devi, A. A.
1 / 3 shared
Rakha, K.
2 / 2 shared
Huttula, M.
3 / 15 shared
Reza, S.
2 / 2 shared
Grattan, Ktv
2 / 2 shared
Asokan, S.
1 / 2 shared
Sun, T.
2 / 12 shared
Rahman, Bma
1 / 1 shared
Dissanayake, K. P. W.
1 / 2 shared
Keskitalo, M.
1 / 11 shared
Wang, S.
2 / 44 shared
King, G.
2 / 3 shared
Zhou, T.
1 / 11 shared
Cao, W.
2 / 12 shared
Xiong, Y.
1 / 7 shared
Singh, H.
2 / 17 shared
Mayer, H.
3 / 5 shared
Frondelius, T.
2 / 9 shared
Karr, U.
1 / 1 shared
Schönbauer, B. M.
3 / 3 shared
Kaijalainen, A.
1 / 47 shared
Miettunen, I.
4 / 6 shared
Karjalainen, P.
2 / 16 shared
Engelke, T.
1 / 1 shared
Dilger, K.
1 / 6 shared
Hesse, A.-C.
1 / 1 shared
Mukherjee, S.
1 / 14 shared
Mukherjee, R.
1 / 6 shared
Haldar, Jayanta
1 / 1 shared
Mohammed Ali, M.
1 / 1 shared
Rastegar, A.
1 / 1 shared
Azhar, O.
1 / 1 shared
Hamzezadeh, A.
1 / 1 shared
Ahmadi, S.
1 / 3 shared
Sher, F.
1 / 14 shared
Poureshgh, Y.
1 / 1 shared
Rashtbari, Y.
1 / 1 shared
Afshin, S.
1 / 1 shared
Setman, D.
1 / 5 shared
Mula, S.
5 / 7 shared
Bairagi, S.
1 / 1 shared
Paine, T. K.
1 / 1 shared
Saha, K.
1 / 1 shared
Kaur, U.
1 / 1 shared
Das, A.
1 / 43 shared
Roisnel, T.
1 / 11 shared
Porter, D.
1 / 51 shared
Surgailis, J.
1 / 1 shared
Gasparini, N.
1 / 27 shared
Gladisch, J.
1 / 1 shared
Zozoulenko, I.
1 / 1 shared
Inal, S.
1 / 6 shared
Giovannitti, A.
1 / 3 shared
Hidalgo, Tc
1 / 3 shared
Thiburce, Q.
1 / 3 shared
Moser, M.
1 / 14 shared
Sheelamanthula, R.
1 / 4 shared
Salleo, A.
1 / 6 shared
Wadsworth, A.
1 / 8 shared
Mcculloch, I.
1 / 53 shared
Berggren, M.
1 / 3 shared
Stavrinidou, E.
1 / 1 shared
Malakar, A.
1 / 1 shared
Kistanov, A. A.
1 / 3 shared
Rahemtulla, A.
1 / 1 shared
Azizur Rahman, Bm
1 / 1 shared
Dissanayake, K.
1 / 1 shared
Suwas, S.
1 / 8 shared
Chatterjee, K.
1 / 3 shared
Bibhanshu, N.
1 / 1 shared
Herres-Pawlis, S.
1 / 1 shared
Tjaberings, A.
1 / 1 shared
Wolper, C.
1 / 3 shared
Groschel, A. H.
1 / 1 shared
Scheiper, C.
1 / 1 shared
Steiniger, P.
1 / 1 shared
Fink, G.
1 / 1 shared
Ksiazkiewicz, A. N.
1 / 1 shared
Schafer, P. M.
1 / 1 shared
Dittrich, D.
1 / 5 shared
Pich, Andrij
1 / 19 shared
Schulz, S.
1 / 4 shared
Stoichkov, Vasil
1 / 2 shared
Kettle, Jeff
1 / 6 shared
Kumar, D.
1 / 7 shared
Smith, Graham C.
1 / 14 shared
Efimov, I.
1 / 4 shared
Gruia, V-T
1 / 1 shared
Khobragade, S.
1 / 1 shared
Swarbrick, S.
1 / 1 shared
Ostanin, V.
1 / 1 shared
Ispas, A.
1 / 1 shared
Bund, A.
1 / 4 shared
Xie, M.
1 / 6 shared
Bowen, C. R.
1 / 19 shared
Morgan, D. J.
1 / 3 shared
Mandal, D.
1 / 5 shared
Davies, P. R.
1 / 2 shared
Patra, A.
1 / 5 shared
-L., Lee Y.
1 / 1 shared
Prakash, S.
1 / 2 shared
Sarkar, T.
1 / 13 shared
R., Motapothula M.
1 / 1 shared
Shao-Horn, Y.
1 / 12 shared
Venkatesan, T.
1 / 5 shared
Annamalai, M.
1 / 1 shared
Giordano, L.
1 / 17 shared
Stoerzinger, K.
1 / 1 shared
Bhattacharya, Saswata
1 / 3 shared
Srivastava, P.
2 / 5 shared
Sarker, Debalaya
1 / 2 shared
Ito, Keita
1 / 13 shared
Hofmann, Sandra
1 / 4 shared
Midha, S.
1 / 1 shared
Melke, J.
1 / 5 shared
Plapp, M.
1 / 4 shared
Bottin-Rousseau, S.
1 / 12 shared
Akamatsu, S.
1 / 8 shared
Faivre, G.
1 / 6 shared
Ak, Saha
1 / 1 shared
Zeng, H.
1 / 4 shared
Sharma, P.
1 / 10 shared
Hb, Sohn
1 / 1 shared
Rk, Das
1 / 1 shared
Af, Hebard
1 / 1 shared
Baligand, Celine
1 / 1 shared
Ga, Walter
1 / 1 shared
Bm, Moudgil
1 / 1 shared
Viana, J. C.
8 / 73 shared
Loureiro, N. C.
1 / 2 shared
Esteves, J. L.
1 / 2 shared
Pp, Majumder
1 / 1 shared
Mohan, Viswanathan
1 / 3 shared
Radha, V.
1 / 2 shared
Ramya, K.
1 / 2 shared
Takaishi, K.
1 / 1 shared
Muto, T.
1 / 1 shared
Ribierre, Jean Charles
1 / 5 shared
Aoyama, T.
1 / 2 shared
Kain, V.
2 / 12 shared
Kiran Kumar, M.
1 / 1 shared
Saario, Timo
2 / 62 shared
Bojinov, M.
2 / 8 shared
Gaonkar, K.
2 / 2 shared
P. Lalla, N.
1 / 1 shared
Shripathi, T.
1 / 2 shared
Kabiraj, D.
3 / 15 shared
Kumar, H.
2 / 4 shared
C. Pivin, J.
3 / 15 shared
K. Avasthi, D.
3 / 15 shared
Kumar, K.
1 / 7 shared
Reis, Rui Luís
8 / 1359 shared
Mano, J. F.
8 / 428 shared
Pandey, B.
1 / 1 shared
Doebrich, F.
1 / 2 shared
Balaji, G.
1 / 3 shared
Eckerlebe, H.
1 / 28 shared
Weissmueller, J.
1 / 24 shared
Rodriguez-Perez, M. A.
1 / 8 shared
Gutierrez, V.
1 / 1 shared
Fernández, C.
1 / 1 shared
Mohapatra, S.
1 / 10 shared
K. Mishra, Y.
1 / 5 shared
Mukherjee, M.
1 / 5 shared
Chowdhury, K.
1 / 1 shared
Dutta, R. K.
1 / 1 shared
Das, A. K.
1 / 1 shared
Pandit, M. K.
1 / 1 shared
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Co-Authors (by relevance)

  • Kusch, G.
  • Loeto, K.
  • Fairclough, Sm
  • Kappers, Mj
  • Griffiths, I.
  • Young, N.
  • Oliver, Ra
  • Wahba, M.
  • Ahmed, E.
  • Khosravifard, A.
  • Hamada, A.
  • Abd-Elaziem, W.
  • Allam, T.
  • Jaskari, M.
  • Kreins, M.
  • Oliver, R.
  • Frentrup, M.
  • Hinz, A.
  • Somani, M.
  • Kaikkonen, P.
  • Kömi, J.
  • Newishy, M.
  • Ali, M.
  • Järvenpää, A.
  • Hietala, M.
  • Patnamsetty, M.
  • Somani, M. C.
  • Peura, P.
  • Richter, K.
  • Khan, M. B.
  • Shakeel, Sh
  • Erbe, A.
  • Georgiev, Yo M.
  • Sadeghpour, S.
  • Latypova, R.
  • Sainio, J.
  • Pallaspuro, S.
  • Javaheri, V.
  • Sasikala Devi, A. A.
  • Rakha, K.
  • Huttula, M.
  • Reza, S.
  • Grattan, Ktv
  • Asokan, S.
  • Sun, T.
  • Rahman, Bma
  • Dissanayake, K. P. W.
  • Keskitalo, M.
  • Wang, S.
  • King, G.
  • Zhou, T.
  • Cao, W.
  • Xiong, Y.
  • Singh, H.
  • Mayer, H.
  • Frondelius, T.
  • Karr, U.
  • Schönbauer, B. M.
  • Kaijalainen, A.
  • Miettunen, I.
  • Karjalainen, P.
  • Engelke, T.
  • Dilger, K.
  • Hesse, A.-C.
  • Mukherjee, S.
  • Mukherjee, R.
  • Haldar, Jayanta
  • Mohammed Ali, M.
  • Rastegar, A.
  • Azhar, O.
  • Hamzezadeh, A.
  • Ahmadi, S.
  • Sher, F.
  • Poureshgh, Y.
  • Rashtbari, Y.
  • Afshin, S.
  • Setman, D.
  • Mula, S.
  • Bairagi, S.
  • Paine, T. K.
  • Saha, K.
  • Kaur, U.
  • Das, A.
  • Roisnel, T.
  • Porter, D.
  • Surgailis, J.
  • Gasparini, N.
  • Gladisch, J.
  • Zozoulenko, I.
  • Inal, S.
  • Giovannitti, A.
  • Hidalgo, Tc
  • Thiburce, Q.
  • Moser, M.
  • Sheelamanthula, R.
  • Salleo, A.
  • Wadsworth, A.
  • Mcculloch, I.
  • Berggren, M.
  • Stavrinidou, E.
  • Malakar, A.
  • Kistanov, A. A.
  • Rahemtulla, A.
  • Azizur Rahman, Bm
  • Dissanayake, K.
  • Suwas, S.
  • Chatterjee, K.
  • Bibhanshu, N.
  • Herres-Pawlis, S.
  • Tjaberings, A.
  • Wolper, C.
  • Groschel, A. H.
  • Scheiper, C.
  • Steiniger, P.
  • Fink, G.
  • Ksiazkiewicz, A. N.
  • Schafer, P. M.
  • Dittrich, D.
  • Pich, Andrij
  • Schulz, S.
  • Stoichkov, Vasil
  • Kettle, Jeff
  • Kumar, D.
  • Smith, Graham C.
  • Efimov, I.
  • Gruia, V-T
  • Khobragade, S.
  • Swarbrick, S.
  • Ostanin, V.
  • Ispas, A.
  • Bund, A.
  • Xie, M.
  • Bowen, C. R.
  • Morgan, D. J.
  • Mandal, D.
  • Davies, P. R.
  • Patra, A.
  • -L., Lee Y.
  • Prakash, S.
  • Sarkar, T.
  • R., Motapothula M.
  • Shao-Horn, Y.
  • Venkatesan, T.
  • Annamalai, M.
  • Giordano, L.
  • Stoerzinger, K.
  • Bhattacharya, Saswata
  • Srivastava, P.
  • Sarker, Debalaya
  • Ito, Keita
  • Hofmann, Sandra
  • Midha, S.
  • Melke, J.
  • Plapp, M.
  • Bottin-Rousseau, S.
  • Akamatsu, S.
  • Faivre, G.
  • Ak, Saha
  • Zeng, H.
  • Sharma, P.
  • Hb, Sohn
  • Rk, Das
  • Af, Hebard
  • Baligand, Celine
  • Ga, Walter
  • Bm, Moudgil
  • Viana, J. C.
  • Loureiro, N. C.
  • Esteves, J. L.
  • Pp, Majumder
  • Mohan, Viswanathan
  • Radha, V.
  • Ramya, K.
  • Takaishi, K.
  • Muto, T.
  • Ribierre, Jean Charles
  • Aoyama, T.
  • Kain, V.
  • Kiran Kumar, M.
  • Saario, Timo
  • Bojinov, M.
  • Gaonkar, K.
  • P. Lalla, N.
  • Shripathi, T.
  • Kabiraj, D.
  • Kumar, H.
  • C. Pivin, J.
  • K. Avasthi, D.
  • Kumar, K.
  • Reis, Rui Luís
  • Mano, J. F.
  • Pandey, B.
  • Doebrich, F.
  • Balaji, G.
  • Eckerlebe, H.
  • Weissmueller, J.
  • Rodriguez-Perez, M. A.
  • Gutierrez, V.
  • Fernández, C.
  • Mohapatra, S.
  • K. Mishra, Y.
  • Mukherjee, M.
  • Chowdhury, K.
  • Dutta, R. K.
  • Das, A. K.
  • Pandit, M. K.
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article

Heterolepic β ‐Ketoiminate Zinc Phenoxide Complexes as Efficient Catalysts for the Ring Opening Polymerization of Lactide

  • Herres-Pawlis, S.
  • Tjaberings, A.
  • Wolper, C.
  • Groschel, A. H.
  • Scheiper, C.
  • Ghosh, S.
  • Steiniger, P.
  • Fink, G.
  • Ksiazkiewicz, A. N.
  • Schafer, P. M.
  • Dittrich, D.
  • Pich, Andrij
  • Schulz, S.
Abstract

Zinc phenoxide complexes (LZnOAr)-Zn-1 1-4 (L-1=Me2NC2H4NC(Me)CHC(Me)O) and (LZnOAr)-Zn-2 5-8 (L-2=Me2NC3H6NC(Me)CHC(Me)O) with donor-functionalized beta-ketoiminate ligands (L-1/2) and OAr substituents (Ar=Ph 1, 5; 2,6-Me-2-C6H3 2, 6; 3,5-Me-2-C6H3 3, 7; 4-Bu-C6H4 4, 8) with tuneable electronic and steric properties were synthesized and characterized. 1-8 adopt binuclear structures in the solid state except for 5, while they are monomeric in CDCl3 solution. 1-8 are active catalysts for the ring opening polymerization (ROP) of lactide (LA) in CH2Cl2 at ambient temperature and the catalytic activity is controlled by the electronic and steric properties of the OAr substituent, yielding polymers with high average molecular weight (M-n) and moderately controlled molecular weight distribution (MWDs). 1 and 5 showed a living polymerization character and kinetic studies on the ROP of L-LA with 1 and 5 proved first order dependencies on the monomer concentration. Homonuclear decoupled H-1-NMR analyses of polylactic acid (PLA) formed with rac-LA proved isotactic enrichment of the PLA microstructure.

Topics
  • impedance spectroscopy
  • microstructure
  • polymer
  • zinc
  • molecular weight
  • Nuclear Magnetic Resonance spectroscopy