林产化学与工业Issue(3)：37-43,7.DOI:10.3969/j.issn.0253-2417.2014.03.007
纤维素-甲基丙烯酸羟乙酯接枝共聚物的ATRP均相合成,结构和性能研究
Preparation,Characterization and Properties of Cellulose-g-PHEMA Copolymer by ATRP in Homogeneous Medium
摘要
Abstract
Cellulose-graft-poly ( 2-hydroxyethyl methacrylate ) ( cellulose-g-PHEMA ) copolymers were prepared by atom-transfer radical polymerization ( ATRP) . Cellulose macroinitiators with different numbers of initiating sites for ATRP were firstly synthesized by direct acylation of cellulose with 2-bromoisobutyryl bromide in LiCl/dimethylacetamide. Subsequently, ATRP of 2-hydroxyethyl methacrylate with cellulose macroinitiators was carried out using CuBr/PMDETA as a catalyst system. Formation of copolymers was confirmed by attenuated total reflectance Fourier transform infrared and GPC. The results of DLS, AFM and TEM also confirmed the synthesis of the grafted copolymer. It showed that the cellulose-g-PHEMA copolymers were easily to be self-assembled in water into spherical micelles with a radius of around 180 nm.关键词
原子转移自由基聚合( ATRP)/接枝共聚物/2-甲基丙烯酸羟乙酯/合成Key words
atom transfer radical polymerization ( ATRP)/graft copolymers/2-hydroxyethyl methacrylate/synthesis分类
化学化工引用本文复制引用
俞娟,王春鹏,王基夫,储富祥..纤维素-甲基丙烯酸羟乙酯接枝共聚物的ATRP均相合成,结构和性能研究[J].林产化学与工业,2014,(3):37-43,7.基金项目
国家国际科技合作专项项目(2011DFA32440) （2011DFA32440）
国家自然科学基金资助项目(31200447) （31200447）
