Miscibility and interactions in poly(n-propyl methacrylate)/poly(vinyl alcohol) blends

被引：9

作者：

Yi, JZ ^{[1
]}

Goh, SH

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China

[2] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore

来源：

POLYMER | 2005年 / 46卷 / 21期

关键词：

blends; miscibility; glass transition temperature;

D O I：

10.1016/j.polymer.2005.07.011

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(n-propyl methacrylate) (PPMA) is miscible with poly(vinyl alcohol) (PVA) over the whole composition range as shown by the existence of a single glass transition temperature in each blend. The interaction between PPMA and PVA was examined by Fourier transform infrared spectroscopy and solid-state nuclear magnetic resonance spectroscopy. The interactions mainly involve the hydroxyl groups of PVA and the carbonyl groups of PPMA. The measurements of proton spin-lattice relaxation time reveal that PPMA and PVA do not mix intimately on a scale of 1-3 nm, but are miscible on a scale of 20-30 mm. A small negative interaction parameter value has been obtained by melting point depression measurement. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：9170 / 9175

页数：6

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