甲基丙烯酸六氟丁酯与甲基丙烯酸丁酯共聚物的制备和性能研究.pdf

塑料工业
第40卷第12期
6
CHINA PLASTICS INDUSTRY
2012年12月
合成エ甲基丙烯酸六氟丁酯与甲基丙烯酸丁酯
与工程
共聚物的制备和性能硏究
陈超,栾英豪2,杨景辉2
(1.华东理T大学化工学院,上海200237;2.国家超细粉末工程研究中心,上海200231
摘要:对甲基丙烯酸六氟丁酯与甲基丙烯酸丁酯在高温下的本体共聚合进行了研究。重点研究了两种单体的竞聚
率和不同单体组成制备得到的共聚物的性能。采用KT和FR两种作图法及YBR计算法对单体的竟聚率进行了计算和
比较。结果表明,在80、120和150C下,甲基丙烯酸六氟丁脂( HFBMA)与甲基丙烯酸丁脂(BMA)的竞聚率分
別为0.717和0.689、0.792和0.773、0.829和0.776,并得到了 HFBMA和BMA在三个温度下的共聚物组成曲线。
研究和讨论了共聚物组成对共聚物的玻璃化转变温度和热稳定性等热性能以及折射率和透光率等光学性能的影响。该
共聚物玻璃化转变温度介于21~46℃之间,初始热分解温度介于260~280℃之间;折射率介于1.-409~1.483之间,
具有较高的透光率
关键词:甲基丙烯酸六氟丁酯;甲基丙烯酸丁酯;竟聚率;热性能;光学性能
DOL:10.3969/j.is8n.1005-5770.2012.12.002
中图分类号:TQ325.7
文献标识码:
文章编号:1005-5770(2012)12-000-06
Preparation and Performance Study of HFBMA-BMA Copolymer
CHEN Chao, LUAN Ying-hao, YANG Jing-hui
(1. East China University of Science and Technology, Shanghai 200237, China
2. National Engineering Research Center of Ultrafine Powder, Shanghai 200231, China
Abstract: The copolymerization of hexafluorobutyl methacrylate(HFBMA) and butyl methacrylate
(BMA)was performed in a bulk copolymerization system at high temperature. The reactivity ratios of two
monomers and the copolymers property were measured. The monomer reactivity ratios were calculated by
using two graphical methods, KT and FR methods, and YBR calculative method. The result indicated when
the temperature was 80 C, 120 C and 150 t, the reactivity ratios of HFBMA and BMA were runya
0.717 and IBMA =0. 689, I HEBMA=0. 792 and rpm=0. 773, RHEUMA=0.829 and Ipa=0.776 respectivel
The copolymer composition curves of HFBMA and BMA were obtained. Effects of copolymer composition on
the glass transition temperature, thermal decomposition temperature, refraction index and light transmittance
of the copolymers were investigated. The refraction index, glass transition temperature and initial
decomposition temperature of the copolymer were about1.409-1.483,21℃-46℃,260℃C-280℃
respectively. The copolymer has a good performance of light transmittance
Keywords: HFBMA; BMA; Reactivity Ratios; Thermal Properties; Optical Performance
聚合物光纤(POF)在现代通信领域中显现出愈价格昂贵,折射率单一,甲基丙烯酸丁酯(BMA)
来愈多的应用,新材料的制备对于提高聚合物光纤的的分子结构与 HIFBMIA相似,价格较为低廉,能与
光学性能和可设计性等具有重要的意义口引。含氟 HFBMA共聚,且其均聚物的光学性能较高:由于聚
内烯酸喃聚合物已在合成聚合物光纤中扮演重要角合物光纤对材料纯度的要求极高,而本体聚合体系中
色3?,甲基丙烯酸六氟丁酯( HIFBMA)聚合物光不加入溶剂、分散剂、乳化剂等难以完全除去的物
学性能好,可用作聚合物光纤芯、皮层材料,但是其质,所以适合用于制备光纤材料,本文通过实施
联系人hyang@ecust.edu.cn
作者简介:陈超,男,1989年生,硕士研究生,研究方向为含氟材料的合成。cboy2010@yahoo.cn