• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Effect of the tacticity of poly(methyl methacrylate) on the phase diagram of its ternary blends
【24h】

Effect of the tacticity of poly(methyl methacrylate) on the phase diagram of its ternary blends

机译：聚甲基丙烯酸甲酯的立构规整度对其三元共混物相图的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Previously, isotactic and atactic poly(methyl methacrylates) (PMMAs) were found to be miscible with poly(vinyl phenol) (PVPh) and poly(hydroxy ether of bisphenol-A) (phenoxy) because all the prepared films were transparent and showed composition-dependent glass transition temperatures (T-g's). However, syndiotactic PMMA was immiscible with VPh because most of the cast films had two Tg's. On the contrary, syndiotactic PMMA was still miscible with phenoxy. According to our preliminary results, PVPh and phenoxy are not miscible. Also to our knowledge, nobody has reported any results concerning the effect of the tacticity of PMMA on its ternary blend containing PVPh and phenoxy. The miscibility of a ternary blend consisting of PVPh, phenoxy, and tactic PMMA was thus investigated and reported in this article. Calorimetry was used as the principal tool to study miscibility. An approximate phase diagram of the ternary blends containing different tactic PMMA was established, probably for the first time, based on differential scanning calorimetry data. Immiscibility was found in most of the studied ternaries but a slight difference due to the effect of tacticity of PMMA was definitely observed. (C) 2002 Wiley Periodicals, Inc. [References: 14]
机译：以前，发现等规和无规聚甲基丙烯酸甲酯（PMMA）可与聚乙烯基苯酚（PVPh）和双酚A的聚羟基醚（苯氧基）混溶，因为所有制备的薄膜都是透明的并显示出组成依赖的玻璃化转变温度（T-g）。但是，间规PMMA与VPh不相容，因为大多数流延膜都具有两个Tg。相反，间规PMMA仍可与苯氧基混溶。根据我们的初步结果，PVPh和苯氧基不可混溶。同样据我们所知，没有人报告有关PMMA的立构规整度对其包含PVPh和苯氧基的三元共混物的影响的任何结果。本文研究并报道了由PVPh，苯氧基和战术PMMA组成的三元共混物的混溶性。量热法是研究溶混性的主要工具。基于差示扫描量热数据，可能是首次建立了包含不同战术PMMA的三元混合物的近似相图。在大多数研究的三元体系中均发现不溶混性，但可以肯定地观察到由于PMMA的立构规整度影响而产生的细微差别。 （C）2002 Wiley Periodicals，Inc. [参考：14]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号