首页> 外文期刊>Journal of Applied Polymer Science >BEHAVIOR OF INTERFACIAL POLYCONDENSATION ON SYNTHESIZING OF POLY(AMIC ESTER)S
【24h】

BEHAVIOR OF INTERFACIAL POLYCONDENSATION ON SYNTHESIZING OF POLY(AMIC ESTER)S

机译:界面缩聚在合成聚(碳酸酯)中的行为

获取原文
获取原文并翻译 | 示例
           

摘要

The behavior in interfacial polycondensation of 4,4'-methylenedianiline or 4,4'-oxydianiline (ODA) in water with dimethoxycarbonyl terephthaloyl chloride (DCMTC) in dichloromethane with benzyltriethylammonium chloride (BTEAC) as a catalyst was examined with a Fourier transform infrared spectrophotometer, attenuated total reflectance, an ultraviolet spectrophotometer, and a scanning electron microscope. When the ratio of the DCMTC concentration to the ODA concentration was about 2 : 1, the interfacial polymer obtained had relatively high inherent viscosity. With the addition of a suitable amount of sodium carbonate and BTEAC, the interfacial polymer obtained had relatively high inherent viscosity. The polymer film grew toward the organic phase from the interface region until the reaction was over. The surfaces of the films adjacent to the water phase were composed of the polymer having a higher molecular weight and were denser in morphology than those of the films adjacent to the organic phase. (C) 1996 John Wiley & Sons, Inc. [References: 22]
机译:用傅立叶变换红外分光光度计检测了水中的4,4'-亚甲基二苯胺或4,4'-氧二苯胺(ODA)与二甲氧基羰基对苯二甲酰氯(DCMTC)在二氯甲烷中的界面缩聚反应,衰减的全反射率,紫外分光光度计和扫描电子显微镜。当DCMTC浓度与ODA浓度之比为约2∶1时,获得的界面聚合物具有相对较高的固有粘度。通过添加适量的碳酸钠和BTEAC,获得的界面聚合物具有相对较高的固有粘度。聚合物膜从界面区域向有机相生长,直到反应结束。与水相相邻的膜的表面由具有较高分子量的聚合物组成,并且与与有机相相邻的膜的表面相比,其形态更致密。 (C)1996 John Wiley&Sons,Inc. [参考:22]

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