STUDIES ON PROPERTIES OF POLY (METHYL METHACRYLATE METHYL ACRYLIC ACID)/ LADDERLIKE POLY(PHENYL SILSESQUIOXANE) IN SITU BLENDS

LI Guizhi; SHI Lianghe; YE Meiling

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STUDIES ON PROPERTIES OF POLY (METHYL METHACRYLATE METHYL ACRYLIC ACID)/ LADDERLIKE POLY(PHENYL SILSESQUIOXANE) IN SITU BLENDS

Research Article | 更新时间：2021-03-19

- STUDIES ON PROPERTIES OF POLY (METHYL METHACRYLATE METHYL ACRYLIC ACID)/ LADDERLIKE POLY(PHENYL SILSESQUIOXANE) IN SITU BLENDS
- Acta Polymerica Sinica Issue 2, Pages: 160-166(1998)
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- Published：20 April 1998，
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LI Guizhi, SHI Lianghe, YE Meiling. STUDIES ON PROPERTIES OF POLY (METHYL METHACRYLATE METHYL ACRYLIC ACID)/ LADDERLIKE POLY(PHENYL SILSESQUIOXANE) IN SITU BLENDS. [J]. Acta Polymerica Sinica (2):160-166(1998)
DOI：

LI Guizhi, SHI Lianghe, YE Meiling. STUDIES ON PROPERTIES OF POLY (METHYL METHACRYLATE METHYL ACRYLIC ACID)/ LADDERLIKE POLY(PHENYL SILSESQUIOXANE) IN SITU BLENDS. [J]. Acta Polymerica Sinica (2):160-166(1998) DOI：

摘要

甲基丙烯酸甲酯甲基丙烯酸共聚物（Ｐ（ＭＭＡ-ＭＡＡ））与低分子量或高分子量梯形聚苯基硅倍半氧烷（ＰＰＳＱ）的共混物经原位聚合法制成．用光学透明法、荧光光谱、ＤＳＣ等技术研究了该共混体系的相容性及组分间的相互作用及结构转变．结果表明

当ＰＰＳＱ含量较小时

由于ＰＰＳＱ与Ｐ（ＭＭＡ-ＭＡＡ）间存在着较强的氢键作用

该共混体系在一定配比下相容

且低分子量ＰＰＳＱ与Ｐ（ＭＭＡ-ＭＡＡ）间的相容性较好．当ＰＰＳＱ的含量≤１％时

ＰＰＳＱ的加入对该共混物的Ｔｇ影响不大

但其Ｔｆ随ＰＰＳＱ含量增加而增大．此外

还测试了Ｐ（ＭＭＡ-ＭＡＡ）／ＰＰＳＱ原位共混物的硬度及冲击强度．

Abstract

P(MMA MAA)/ladderlike PPSQ blends

in which PPSQ has a low or high molecular weight

were prepared by in situ copolymerization. Light transimissivity measurement

fluorescence

DSC techniques were used to study the miscibility

interactions of two components and structural transitions. The results indicate that P(MMA MAA) and PPSQ are completely miscible on a small scale of 200nm because of some strong hydrogen bonding interactions between molecules of P(MMA MAA) and PPSQ when the blends contain a small amount of PPSQ and that PPSQ with a low molecular weight has better miscibility with P(MMA-MAA)than that of PPSQ with higher Mw.Although compositions of the blends has little influence on Tg

of the blends almost increase with an increase of PPSQ content (PPSQ≤1%).Ball hardness and impact strength of all blend samples were also measured.

关键词

Ｐ（ＭＭＡ-ＭＡＡ）／梯形ＰＰＳＱ共混物相容性力学性能

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MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University

Zheda Institute of Advanced Materials and Chemical Engineering

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