• 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 >Microstructure Determination of the Acrylonitrile-Styrene-Methyl Methacrylate Terpolymrs by NMR Spectroscopy
【24h】

Microstructure Determination of the Acrylonitrile-Styrene-Methyl Methacrylate Terpolymrs by NMR Spectroscopy

机译：核磁共振光谱法测定丙烯腈-苯乙烯-甲基丙烯酸甲酯三元共聚物的微观结构

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

Acrylonitrile-styrene-methyl methacrylate (A-S-M0 terpolymers were prepared by photopolymerization using uranyl nitrate ions as photo initiators,which were analyzed by NMR spectroscopy.The terpolymer compositions were determinde by Goldfinger's equation using comonomer reactivity ratios: #UPSILON#_(as) = 0.04; #UPSILON#_(sa) = 0.31;#UPSILON#_(am) = 0.17,#UPSILON#_ma = 1.45;#UPSILON#_(sm) = 0.52;#UPSILON#_(ms) = 0.47.The terpolymer compositions were also determined from the quantitative ~(13)C(~1H)-NMR spectroscopy.The sequence distribution of the acrylonitrile-,styrene-,and methyl methacrylate-centered triads were determined from the ~(13)C(~1H)-NMR spectra of the terpolymers and are in good agree-ment with triad concentrations calculted from the statistical model.
机译：以硝酸铀酰离子为光引发剂通过光聚合反应制备丙烯腈-苯乙烯-甲基丙烯酸甲酯（AS-M0三元共聚物），并通过NMR光谱法进行分析。三元共聚物的组成由Goldfinger方程确定，共聚单体的反应比为：#UPSILON #_（as） = 0.04; #UPSILON #_（sa）= 0.31; #UPSILON #_（am）= 0.17，＃UPSILON＃_ma = 1.45; #UPSILON #_（sm）= 0.52; #UPSILON #_（ms）= 0.47。还通过〜（13）C（〜1H）-NMR定量光谱确定了三元共聚物的组成。~~（13）C（〜）确定了以丙烯腈，苯乙烯和甲基丙烯酸甲酯为中心的三单元组的序列分布三元共聚物的1H-NMR谱图与从统计模型计算得出的三合一浓度非常吻合。

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