Synthesis and characterization of poly(methyl methacrylate) using monofunctional polyhedral oligomeric silsesquioxane as an initiator

被引：32

作者：

Liu, Lei ^{[1
]}

Wang, Wenping ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Chem & Engn, Hefei 230009, Anhui, Peoples R China

来源：

POLYMER BULLETIN | 2009年 / 62卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Polyhedral oligomeric silsesquioxane (POSS); Atom transfer radical polymerization (ATRP); Poly(methyl methacrylate); Composites; TRANSFER RADICAL POLYMERIZATION; POSS HYBRID NANOCOMPOSITES; METHYL-METHACRYLATE; STAR POLYMERS; COPOLYMERS; MORPHOLOGY; MECHANISM; LENGTH;

D O I：

10.1007/s00289-008-0020-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

POSS/PMMA composite was synthesized by atom transfer radical polymerization (ATRP) at 110 A degrees C using commercial POSSCl as an initiator and CuCl/2,2'-bipyridine as catalyst system. The structures of POSS/PMMA and POSSCl were characterized by Fourier transfer infrared spectroscopy, Nuclear magnetic resonance spectroscopy, Ger permeation chromatography, X-ray diffraction and X-ray photoelectron spectroscopy, which confirmed that Si-Cl bond on POSS cage could successfully initiate the ATRP of methyl methacrylate, so there is only one POSS unit in a PMMA chain. The thermal properties of POSS/PMMA were investigated by Differential scanning calorimetry and Thermogravimetric analysis, the results show that the incorporation of POSS cage results in the enhancement of the glass transition temperature and the decomposition temperature of PMMA, which is mainly attributed to the mono-dispersion of POSS in PMMA matrix at molecular lever.

引用

页码：315 / 325

页数：11

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