Polycarbonate and Poly(carbonate−ester)s Synthesized from Biocompatible Building Blocks of Glycerol and Lactic Acid
摘要:
The synthesis and characterization of a polycarbonate of glycerol and poly(carbonate-ester)s of glycerol and L-lactic acid are reported. These new polymers possess a hydrolyzable backbone, tunable hydrophobic/hydrophilic properties, and functionalizable pendant groups. The free hydroxyl groups on the poly(glycerol-co-L-lactic acid) were derivatized with 4-isobutylmethylphenylacetic acid, a common nonsteroidal antiinflammatory drug.
New amphiphilic polycarbonates with side functionalized cholesteryl groups as biomesogenic units: synthesis, structure and liquid crystal behavior
作者:Xiaoxu Xu、Xiaofeng Liu、Qun Li、Jianshe Hu、Qifan Chen、Liqun Yang、Yanhua Lu
DOI:10.1039/c7ra00360a
日期:——
functionalized-cholesterol based aliphatic polycarbonates is described through the ring-opening polymerization and coupling reaction. The chemical structures, liquid crystal (LC) behavior, and thermal stability of the chiral monomers and copolymers obtained in this study were characterized using Fourier transform infrared (FT-IR) spectroscopy, proton nuclear magneticresonance (1H NMR) spectroscopy, gel
endo-/lysosomes and promote the escape of prodrugmicelles from endo-/lysosome to cytoplasm, resulting in the first-stage destabilization of micelles. Subsequently, the CPT is released in response to high concentration of GSH in cytoplasm, which would greatly increase the hydrophilicity of the BOH block and initiate the complete disassembly of the polymer micelles owing to the damage of the hydrophilic–hydrophobic
Described herein are compounds and processes that can be used to prepare polymer-based films, particles, gels and related compositions, and processes for delivery of agents, and other uses.
Synthesis, characterization and reactivity of a six-membered cyclic glycerol carbonate bearing a free hydroxyl group
作者:M. Tryznowski、Z. Żołek-Tryznowska、A. Świderska、P. G. Parzuchowski
DOI:10.1039/c5gc01688f
日期:——
Five- and six-membered cyclic carbonates, have recently become popular as starting materials for synthesis of polycarbonates via ring opening polymerization or synthesis of an environmentally friendly non-isocyanate polyurethanes. In many...
[EN] CATALYTIC SYSTEMS FOR IMMORTAL RING-OPENING POLYMERISATION OF CYCLIC ESTERS AND CYCLIC CARBONATES.<br/>[FR] SYSTÈMES CATALYTIQUES POUR LA POLYMÉRISATION IMMORTELLE PAR OUVERTURE DE CYCLE D'ESTERS CYCLIQUES ET DE CARBONATES CYCLIQUES
申请人:TOTAL PETROCHEMICALS RES FELUY
公开号:WO2010125138A1
公开(公告)日:2010-11-04
The present invention discloses new catalyst systems based on complexes of divalent metals supported by chelating phenoxy ligands for immortal ring-opening polymerisation of cyciic esters and cyclic carbonates.