Effects of Residual Solvent on Glass Transition Temperature of Poly(methyl methacrylate)

被引：14
|
作者：
Ito, Asae [1 ]
Ayerdurai, Viknasvarri [1 ]
Miyagawa, Azusa [1 ]
Matsumoto, Akikazu [2 ]
Okada, Haruki [2 ]
Courtoux, Antoine [3 ]
Yamaguchi, Masayuki [1 ]
机构：
[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, 1-1 Asahidai, Nomi, Ishikawa 9231292, Japan
[2] Mitsubishi Chem Corp, 20-1 Miyuki Cho, Otake, Hiroshima 7390693, Japan
[3] Engn Sch Chem & Adv Mech, SIGMA Clermont Campus Cezeaux, F-63178 Aubiere, France
来源：
NIHON REOROJI GAKKAISHI | 2018年 / 46卷 / 03期
基金：
日本科学技术振兴机构;
关键词：
Glass transition temperature; Rheology; Thermal properties; Thermoplastics; Viscosity and viscoelasticity; VISCOELASTIC PROPERTIES; CONCENTRATED-SOLUTIONS; MOLECULAR-DYNAMICS; BLEND FILMS; WATER; PMMA;
D O I：
10.1678/rheology.46.117
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The effects of residual solvent on the glass transition temperature (Tg) of poly(methyl methacrylate) (PMMA) were studied. A small amount of solvent in a film obtained by solution casting was found to remain even after vacuum evaporation for 30 h and compression -molding at 200 degrees C. The amount of residual solvent was less than 0.5 %, as revealed by gas chromatography. Therefore, this phenomenon is different from the plasticizing effect. A shift of the Tg to a lower temperature was attributed to strong ion-dipole interactions between the solvent molecules and the carbonyl group in PMMA molecules. Such interactions suppressed the associated states of PMMA, which greatly affected chain mobility.
引用
收藏
页码：117 / 121
页数：5
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