ATRP法均相制备纤维素/甲基丙烯酸丁酯接枝聚合物

doi:10.3969/j.issn.0438-1157.2014.03.048

化工学报 ›› 2014, Vol. 65 ›› Issue (3): 1111-1117.DOI: 10.3969/j.issn.0438-1157.2014.03.048

• 材料化学工程与纳米技术 • 上一篇下一篇

ATRP法均相制备纤维素/甲基丙烯酸丁酯接枝聚合物

哈丽丹·买买提, 开比努尔·艾尔肯, 米娜瓦尔·乌买尔

新疆大学化学化工学院, 新疆乌鲁木齐 830046

收稿日期:2013-06-06 修回日期:2013-10-12 出版日期:2014-03-05 发布日期:2014-03-05
通讯作者: 哈丽丹·买买提
作者简介:哈丽丹·买买提（1966—），女，副教授。
基金资助:
国家自然科学基金项目（21064008）。

Preparation of cellulose graft poly(butyl methacrylate) copolymers by homogeneous ATRP

Halidan Maimaiti, Kalbinur Arken, Minawar Wumaier

School of Chemistry and Chemical Industry, Xinjiang University, Urumqi 830046, Xinjiang, China

Received:2013-06-06 Revised:2013-10-12 Online:2014-03-05 Published:2014-03-05
Supported by:
supported by the National Natural Science Foundation of China(21064008).

摘要/Abstract

摘要： 在纤维素LiCl/DMAc均相溶液中，通过氯乙酰氯（ClC₂OCl）与纤维素的均相酰化反应制得纤维素氯乙酸酯（Cellulose-ClAc）后，将其溶解在DMAc中，在FeCl₂/4-二甲氨基吡啶（DMAP）的催化作用下，引发甲基丙烯酸丁酯（BMA）的均相ATRP 聚合反应，制备了纤维素/BMA接枝共聚物（Cellulose-g-PBMA），考察了反应时间、反应温度、反应物配比等对酰化及接枝聚合反应的影响，并通过测试Cellulose-g-PBMA薄膜的接触角，对最终产物的疏水性能进行了研究；采用FTIR、NMR、SEM、TEM、AFM等分析手段对Cellulose-ClAc及Cellulose-g-PBMA的结构进行了表征；利用GPC分析了接枝聚合反应的活性特征。

关键词: 纤维素, 甲基丙烯酸丁酯, 均相ATRP, 接枝聚合, 疏水性能

Abstract: Cellulose graft poly(butyl methacrylate) copolymers (Cellulose-g-PBMA) were prepared by homogeneous atom transfer radical polymerization (ATRP) process. Cellulose chloroacetate(Cellulose-ClAc), as macroinitiator, was synthesized first by direct acylation of cotton pulp cellulose with chloroacetyl chloride (ClC₂OCl) in cellulose/LiCl/DMAc solution. Thereafter, Cellulose-ClAc was used for the ATRP of BMA (butyl methacrylate) mediated by the FeCl₂/four-dimethyl aminopyridine (DMAP) catalytic system. Acylation reaction and grafting polymerization conditions, such as reaction time, reaction temperature and ratio of reactants were investigated. The hydrophobicity of Cellulose-g-PBMA copolymer was studied with contact angle measurements. Cellulose-ClAc and Cellulose-g-PBMA were characterized by means of FTIR,NMR,SEM,TEM, AFM. Gel permeation chromatography (GPC) was used to analyze the characteristics of the activity of polymerization.

Key words: cellulose, butyl methacrylate, homogeneous ATRP, graft copolymerization, hydrophobicity

中图分类号:

TQ314.1

哈丽丹·买买提, 开比努尔·艾尔肯, 米娜瓦尔·乌买尔. ATRP法均相制备纤维素/甲基丙烯酸丁酯接枝聚合物[J]. 化工学报, 2014, 65(3): 1111-1117.

Halidan Maimaiti, Kalbinur Arken, Minawar Wumaier. Preparation of cellulose graft poly(butyl methacrylate) copolymers by homogeneous ATRP[J]. CIESC Journal, 2014, 65(3): 1111-1117.

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ATRP法均相制备纤维素/甲基丙烯酸丁酯接枝聚合物

Preparation of cellulose graft poly(butyl methacrylate) copolymers by homogeneous ATRP

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