• 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 >Novel mucoadhesive polymer prepared by template polymerization of acrylic acid in the presence of poly(ethylene glycol)
【24h】

Novel mucoadhesive polymer prepared by template polymerization of acrylic acid in the presence of poly(ethylene glycol)

机译：通过在聚乙二醇存在下丙烯酸模板聚合制备的新型粘膜粘附聚合物

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

A new mucoadhesive polymer was prepared by template polymerization of acrylic acid in the presence of poly(ethylene glycol) (PEG). FTIR results indicated that a polymer complex was formed between poly(acrylic acid) (PAA) and PEG through hydrogen bonding. The hydrogen bonding in the PAA/PEG polymer complex was stronger than that in the PAA/PEG blend, and became stronger as the molecular weight of PEG increased. Glass transition temperatures (Tg) of PAA in the PAA/PEG polymer complexes was shifted to a lower temperature than that of PAA in the PAA/PEG blend. However, they tended to become higher as the molecular weight of PEG increased. The dissolution rate of the PAA/PEG polymer complex was much slower than the PAA/PEG blend, and was dependent on pH and molecular weight of the PEG. The mucoadhesive force of the PAA/PEG polymer complexes was stronger than for the PAA/PEG blend or a commercial product, Carbopol 971P NF.
机译：在聚乙二醇（PEG）存在下，通过丙烯酸的模板聚合反应制备了一种新的粘膜粘附性聚合物。 FTIR结果表明，聚（丙烯酸）（PAA）与PEG之间通过氢键形成了聚合物配合物。 PAA / PEG聚合物络合物中的氢键比PAA / PEG共混物中的氢键强，并且随着PEG分子量的增加而增强。 PAA / PEG聚合物络合物中PAA的玻璃化转变温度（Tg）转变为比PAA / PEG共混物中的PAA更低的温度。但是，随着PEG分子量的增加，它们倾向于变得更高。 PAA / PEG聚合物复合物的溶解速率比PAA / PEG共混物慢得多，并且取决于pH和PEG的分子量。 PAA / PEG聚合物复合物的粘膜粘附力比PAA / PEG共混物或市售产品Carbopol 971P NF的粘膜粘附力强。

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