• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Polymers and the Environment >Green Synthesis and Physical Properties of poly(Vinyl Alcohol) Maleated in an Aqueous Solutions
【24h】

Green Synthesis and Physical Properties of poly(Vinyl Alcohol) Maleated in an Aqueous Solutions

机译：水溶液中马来酸化的聚乙烯醇的绿色合成及物理性质

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

The objective of this work was to synthesize maleated poly(vinyl alcohol) (PVAM) in aqueous solution through esterification, and to seek near optimal degree of grafting and crosslinking. The effects of maleic anhydride (MA) content on the properties of PVAM were investigated. The experimental observations included characterizations by ATR-FTIR and thermo gravimetric analyses (TGA), and determinations of grafting ratio, dynamic viscosity, and swelling ratio. The percentage degree of grafting, dynamic viscosity, and particle size increased with MA content, while the swelling ratio decreased due to copolymerization of poly(vinyl alcohol) (PVA) and MA. The peaks at 945 and 918 cm~(-1) in the spectrum of PVA indicated the presence of carboxylic groups, while in the spectrum of PVAM only one peak at 920 cm~(-1) indicated presence of carboxylic groups, due to copolymerization of PVA and MA. Moreover, the thermal stability of PVA-g-MA was enhanced as observed from TGA. The results suggest 7:3 PVA/MA mass ratio as near optimal for PVA-g-MA.
机译：这项工作的目的是通过酯化在水溶液中合成马来酸化的聚乙烯醇（PVAM），并寻求接近最佳的接枝和交联度。研究了马来酸酐（MA）含量对PVAM性能的影响。实验观察包括通过ATR-FTIR和热重分析（TGA）进行表征，以及测定接枝率，动态粘度和溶胀率。接枝率，动态粘度和粒度的百分比随MA含量的增加而增加，而溶胀率则由于聚乙烯醇（PVA）和MA的共聚而降低。 PVA光谱中945和918 cm〜（-1）处的峰表明存在羧基，而PVAM光谱中仅920 cm〜（-1）处的一个峰表明存在羧基，这是由于共聚引起的。 PVA和MA。另外，从TGA观察到，PVA-g-MA的热稳定性提高。结果表明7：3的PVA / MA质量比对于PVA-g-MA而言接近最佳。

著录项

  • 来源
    《Journal of Polymers and the Environment》 |2014年第3期|350-358|共9页
  • 作者

    Wattana Sukhlaaied; Sa-Ad Riyajan;

  • 作者单位

    Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand,Faculty of Science, Natural Products Research Center, Prince of Songkla University, Songkhla 90110, Thailand;

    Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Songkhla 90110, Thailand,Faculty of Science, Natural Products Research Center, Prince of Songkla University, Songkhla 90110, Thailand;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Poly(vinyl alcohol); Maleic anhydride; Graft copolymer; Maleated PVA; Green synthesis;

    机译：聚乙烯醇）;马来酸酐;接枝共聚物;马来酸化的PVA;绿色综合;

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