Molecular dynamics and mechanical properties correlations of PA6/PPO blends compatibilized with SMA

NCU Institutional Repository > 理學院 > 化學研究所 > 期刊論文 > Item 987654321/28365

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/28365

题名:	Molecular dynamics and mechanical properties correlations of PA6/PPO blends compatibilized with SMA
作者:	Chu,PP;Huang,JM;Wu,HD;Chiang,CR;Chang,FC
贡献者:	中央大學
关键词:	OXIDE) POLYAMIDE BLENDS;POLYMER BLENDS;SPIN-DIFFUSION;NMR;PPO;COPOLYMER;PA6
日期:	1999
上传时间:	2010-06-29 19:47:08 (UTC+8)
出版者:	化學研究所
摘要:	The effects of the compatibilizer, styrene maleic anhydride (SMA-8% MA) upon the change of morphology and molecular dynamics of polyamide-6 (PA6) and poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) blends were investigated by means of solid-state NMR techniques. With increasing amounts of SMA, the domains correspond to PA6 and PPO are reduced and the polymer segmental mobility increased. The correlation between NMR relaxation time, T-1p(H), and the bulk mechanical properties provide a molecular level understanding of the modification of molecular dynamics by the compatibilizer (SMA). The correlation shows that the tensile strength is governed mainly by the morphology, but modulated by the PA6 crystallinity, while the tensile elongation and impact strength are closely affected by both the molecular mobility and morphology. The annealing process improved only the tensile strength, but deteriorated tensile elongation and impact strength due to the increase of PA6 crystallinity, which induced phase separation after annealing. This study raised an important point that the polymer mechanical properties are most sensitive to the molecular structure and dynamics take place within the range of 20 Angstrom to few hundred Angstrom. (C) 1999 John Wiley & Sons, Inc.
關聯:	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
显示于类别:	[化學研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	477	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing

数据加载中.....