首页> 外文期刊>Journal of Applied Polymer Science >Ultrasonic Disassociation of EVA Random Copolymer in Dilute Solutions
【24h】

Ultrasonic Disassociation of EVA Random Copolymer in Dilute Solutions

机译:稀溶液中EVA无规共聚物的超声离解

获取原文
获取原文并翻译 | 示例
           

摘要

Ultrasonic disassociation of the ethylene-vinyl acetate (EVA) random copolymer in 1,2-dichloroethane (DCE), cyclohexane (CYH), and their solvent mixtures was investigated using viscometry and dynamic laser light scattering (DLLS). It was found that the disassociation of the EVA aggregates in solutions increases with increas-ing the time and intensity of ultrasonic shearing and approaches invariant finally. This phenomenon is especially marked for the EVA copolymer with low vinyl acetate (VA) content in the polar solvent of DCE at higher concentration and lower temperature.This is attributed to disassociation of the ethylene segment of the EVA random co-polymer in dilute solutions.
机译:乙烯-乙酸乙烯酯(EVA)无规共聚物在1,2-二氯乙烷(DCE),环己烷(CYH)及其溶剂混合物中的超声解离反应采用粘度法和动态激光散射(DLLS)研究。结果发现,随着超声剪切时间和强度的增加,溶液中EVA聚集体的解离增加,最终趋于不变。对于在较高浓度和较低温度下DCE极性溶剂中乙酸乙烯酯(VA)含量低的EVA共聚物,这种现象尤为明显,这是由于EVA无规共聚物在稀释溶液中的乙烯链段解离。

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