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

doi:10.3969/j.issn.0253-2417.2014.03.007

Abstract

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.

Key words: atom transfer radical polymerization (ATRP), graft copolymers, 2-hydroxyethyl methacrylate, synthesis CLC number:TQ35

CLC Number:

TQ35

YU Juan YU Juan, WANG Chun-peng, WANG Ji-fu, CHU Fu-xiang. Preparation, Characterization and Properties of Cellulose-g-PHEMA Copolymer by ATRP in Homogeneous Medium[J]. Chemistry and Industry of Forest Products, 2014, 34(3): 37-43.

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

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