Synthesis and characterization of biodegradable amphiphilic PEG-grafted poly（DTC-co-CL）

A novel biodegradable copolymer, poly（5,5-dibromomethyltrimethylene carbonate-co-ε-caprolactone） （poly（DBTC-co-CL）） with pendant bromine groups, was synthesized via ring-opening polymerization （ROP） of ε-caprolactone （CL） and 5,5- dibromomethyltrimethylene carbonate （DBTC） using stannous octoate （Sn...

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Published in:Chinese chemical letters 2010 (10), p.1255-1258
Main Author: Qiu Jin Zhang Wei Pu Zhu Zhi Quan Shen
Format: Article
Language:English
Subjects:
DTC
两亲性
可生物降解聚合物
接枝共聚物
碳酸钴
聚乙二醇
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description A novel biodegradable copolymer, poly（5,5-dibromomethyltrimethylene carbonate-co-ε-caprolactone） （poly（DBTC-co-CL）） with pendant bromine groups, was synthesized via ring-opening polymerization （ROP） of ε-caprolactone （CL） and 5,5- dibromomethyltrimethylene carbonate （DBTC） using stannous octoate （Sn（Oct）2） as catalyst. Then the pendant bromine groups were completely converted into azide form, which permitted ＂click＂ reaction with alkyne-terminated polyethylene （A-PEG） by Huisgen 1,3-dipolar cycloadditions preparing biodegradable amphiphilic poly（DTC-co-CL）-g-PEG graft copolymer. The graft copolymer was characterized by nuclear magnetic resonance （NMR） and size-exclusion chromatography （SEC）.
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subjects DTC
两亲性
可生物降解聚合物
接枝共聚物
碳酸钴
聚乙二醇
title Synthesis and characterization of biodegradable amphiphilic PEG-grafted poly（DTC-co-CL）
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