In situ polyurethane/silica composite formation via a sol-gel process

被引：11

作者：

Park, NH ^{[1
]}

Lee, JW ^{[1
]}

Suh, KD ^{[1
]}

机构：

[1] Hanyang Univ, Coll Engn, Div Chem Engn, Seoul 133791, South Korea

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2002年 / 84卷 / 12期

关键词：

polyurethane acrylate anionomer (PUAA); sol-gel process; swelling; ionic cluster; silica;

D O I：

10.1002/app.10556

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polyurethane acrylate anionomer (PUAA)/silica composite gels were prepared by the sol-gel reaction of tetraethoxysilane (TEOS) and methacryloxypropyl trimethoxysilane (MPTS) incorporated to PUAA gels by using a swelling method. The formation and structure of composites were confirmed by FTIR, X-ray diffraction, and SEM. As a result, we found that silica components in composites are located within the ionic domains of their gels and interacted with PUAA via hydrogen bonding. This drastically enhanced the mechanical properties of the composites. Mechanical properties are also improved by MPTS, because MPTS improves the dispersibility and adhesion of silica components in PUAA/silica composite gels. (C) 2002 Wiley Periodicals, Inc.

引用

页码：2327 / 2334

页数：8

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