• 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 >SYNTHESIS AND CHARACTERIZATION OF OLIGOETHYLENE BIBENZOATE WITH HYDROXYETHYL END GROUPS
【24h】

SYNTHESIS AND CHARACTERIZATION OF OLIGOETHYLENE BIBENZOATE WITH HYDROXYETHYL END GROUPS

机译：具有羟基乙基端基的低分子量双苯甲酸酯的合成与表征

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

In the process of exploring the potential advantage of 4,4'-biphenyl dicarboxylic acid (BDA) as a comonomer in poly(ethylene terephthalate) (PET), it was found that BDA needs to be derivatized for effective incorporation in PET specifically if high levels of BDA incorporation are desired. Bis-hydroxyethylbibenzoate (HEB) was synthesized with the anticipation that it would be compatible with both the continuous PET process which uses high-purity terephthalic acid as well as the batch PET process which utilizes dimethyl terephthalate. This article describes the synthesis of HEB and some of the oligoethylene bibenzoates produced in the process. Diethylene glycol is produced as an undesirable by-product during the reaction. In an effort to produce a minimum amount of diethylene glycol, a catalytic process was investigated which resulted in diethylene glycol levels of less than 0.5%. Quantitative analysis of diethylene glycol, performed by gas chromatography, and the oligomer structure studies performed by H-1- and C-13-NMR are described. (C) 1996 John Wiley & Sons, Inc. [References: 30]
机译：在探索4,4'-联苯二甲酸（BDA）作为聚对苯二甲酸乙二醇酯（PET）中共聚单体的潜在优势的过程中，发现BDA需要衍生化才能有效地掺入PET中BDA掺入的水平是期望的。合成双羟乙基联苯甲酸酯（HEB）的预期是，它与使用高纯度对苯二甲酸的连续PET工艺以及利用对苯二甲酸二甲酯的间歇PET工艺都兼容。本文介绍了HEB的合成以及在此过程中产生的一些低聚亚乙基联苯酸酯。在反应过程中产生二甘醇作为不希望的副产物。为了产生最小量的二甘醇，研究了导致二甘醇含量小于0.5％的催化方法。描述了通过气相色谱法对二甘醇的定量分析，以及通过H-1-和C-13-NMR进行的低聚物结构研究。 （C）1996 John Wiley＆Sons，Inc. [参考：30]

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