Journal ArticleDOI
Controlled ring-opening polymerization of lactide and glycolide.
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TLDR
This work focuses on the characterization of the phytochemical components of Lactide ROP and their role in the regulation of cell reprograming.Abstract:
23 Stereocontrol of Lactide ROP 6164 231 Isotactic Polylactides 6164 232 Syndiotactic Polylactides 6166 233 Heterotactic Polylactides 6166 3 Anionic Polymerization 6166 4 Nucleophilic Polymerization 6168 41 Mechanistic Considerations 6168 42 Catalysts 6169 421 Enzymes 6169 422 Organocatalysts 6169 43 Stereocontrol of Lactide ROP 6170 44 Depolymerization 6170 5 Cationic Polymerization 6170 6 Conclusion and Perspectives 6171 7 Acknowledgments 6173 8 References and Notes 6173read more
Citations
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A robust zirconium N-heterocyclic carbene complex for the living and highly stereoselective ring-opening polymerization of rac-lactide
TL;DR: A readily accessible and robust Zr-NHC complex was found to polymerize rac-lactide in a highly controlled, living and stereoselective manner to afford heterotactic PLA.
Journal ArticleDOI
Magnesium and zinc complexes of functionalised, saturated N-heterocyclic carbene ligands: carbene lability and functionalisation, and lactide polymerisation catalysis
TL;DR: Preliminary results on the use of these complexes as initiators for the polymerisation of rac-lactide are reported, and suggest different initiation mechanisms are occurring for the two metals, in agreement with the different silylation reactivity observed.
Journal ArticleDOI
Catalytic Ring-Opening Polymerization of Renewable Macrolactones to High Molecular Weight Polyethylene-like Polymers
Inge van der Meulen,Erik Gubbels,Saskia Huijser,RJ Rafaël Sablong,CE Cor Koning,Andreas Heise,Rob Duchateau +6 more
TL;DR: In this paper, the catalytic ring-opening polymerization of macrolactones to polyethylene-like polyesters was investigated using aluminum-salen complexes as the initiators.
Journal ArticleDOI
Bottlebrush polymers: From controlled synthesis, self-assembly, properties to applications
Zili Li,Zili Li,Miao Tang,Shuang Liang,Mingyue Zhang,Gill M. Biesold,Yanjie He,Shu-Meng Hao,Woosung Choi,Yijiang Liu,Juan Peng,Zhiqun Lin +11 more
TL;DR: In this paper, the authors provide a comprehensive and critical summary that highlights the recent advances in BBPs in terms of their controlled syntheses, self-assembly, properties, and applications.
Journal ArticleDOI
Zinc and magnesium complexes supported by bulky multidentate amino-ether phenolate ligands: potent pre-catalysts for the immortal ring-opening polymerisation of cyclic esters.
TL;DR: A family of heteroleptic complexes of zinc and magnesium supported by bulky multidentate amino-ether phenolate ligands has been developed and constitute efficient binary catalytic systems for the immortal ring-opening polymerisation of cyclic esters.
References
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Journal ArticleDOI
N-heterocyclic carbenes: a new concept in organometallic catalysis.
TL;DR: N-Heterocyclic carbenes have become universal ligands in organometallic and inorganic coordination chemistry as mentioned in this paper, and they not only bind to any transition metal, be it in low or high oxidation states, but also to main group elements such as beryllium, sulfur, and iodine.
Journal ArticleDOI
Biodegradable nanoparticles for drug and gene delivery to cells and tissue
Jayanth Panyam,Vinod Labhasetwar +1 more
TL;DR: Based on the above mechanism, various potential applications of nanoparticles for delivery of therapeutic agents to the cells and tissue are discussed.
Journal ArticleDOI
Polylactic Acid Technology
TL;DR: Polylactic acid is proving to be a viable alternative to petrochemical-based plastics for many applications It is produced from renewable resources and is biodegradable, decomposing to give H2O, CO2, and humus, the black material in soil as mentioned in this paper.
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Polymeric Systems for Controlled Drug Release
TL;DR: Kevin Shakesheff investigates new methods of engineering polymer surfaces and the application of these engineered materials in drug delivery and tissue engineering.
Journal ArticleDOI
Synthetic biodegradable polymers as orthopedic devices.
John Middleton,Arthur J. Tipton +1 more
TL;DR: In this paper, the authors focus on properties of biodegradable polymers which make them ideally suited for orthopedic applications where a permanent implant is not desired, and an overview of biocompatibility and approved devices of particular interest in orthopedics are also covered.