登录    注册    忘记密码

详细信息

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(英文)  ( EI收录)   被引量:1

Preparation,Characterization and Properties of Cellulose-g-PHEMA Copolymer by ATRP in Homogeneous Medium

文献类型:期刊文献

中文题名: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(英文)

英文题名:Preparation,Characterization and Properties of Cellulose-g-PHEMA Copolymer by ATRP in Homogeneous Medium

作者:俞娟[1,2,3,4] 王春鹏[1,2,3,4,5] 王基夫[1,2,3,4,5] 储富祥[1,2,3,4,5]

第一作者:俞娟

通信作者:Wang, J.-F.

机构:[1]中国林业科学研究院林产化学工业研究所;[2]生物质化学利用国家工程实验室;[3]国家林业局林产化学工程重点开放性实验室;[4]江苏省生物质能源与材料重点实验室;[5]中国林业科学研究院林业新技术研究所

年份:2014

卷号:34

期号:3

起止页码:37-43

中文期刊名:林产化学与工业

外文期刊名:Chemistry and Industry of Forest Products

收录:CSTPCD;;EI(收录号:20142917960722);Scopus(收录号:2-s2.0-84904163404);北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;

基金:国家国际科技合作专项项目(2011DFA32440);国家自然科学基金资助项目(31200447)

语种:中文

中文关键词: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

外文关键词:atom transfer radical polymerization (ATRP) ;graft copolymers ;2-hydroxyethyl methacrylate;synthesis

分类号:TQ35

摘要:在氯化锂/N,N-二甲基乙酰胺(LiCl/DMAc)体系中,利用2-溴代异丁酰溴与纤维素的直接酯化反应首先合成了具有不同引发点数量的ATRP大分子引发剂(cell-Br);然后以CuBr/PMDETA为催化体系,cell-Br为引发剂,将2-甲基丙烯酸羟乙酯通过原子转移自由基聚合ATRP法接枝到纤维素的大分子骨架上合成纤维素-甲基丙烯酸羟乙酯接枝共聚物(cellulose-g-PHEMA)。通过FT-IR,1H NMR,GPC和TGA对cell-Br和cellulose-g-PHEMA的结构和性能进行分析,并利用动态光散射(DLS),原子力显微镜(AFM),透射电镜(TEM)观察了cellulose-g-PHEMA的微观形貌,结果表明cellulose-g-PHEMA易于组装成直径约180 nm的球形胶束。
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.

参考文献:

正在载入数据...

版权所有©中国林业科学研究院 重庆维普资讯有限公司 渝B2-20050021-8 
渝公网安备 50019002500408号 违法和不良信息举报中心