跳到主要导航 跳到搜索 跳到主要内容

Characterization of hydroxypropyl methylcellulose acetate succinate

  • Zi Qiang Shao*
  • , Yi Ping Zheng
  • , Yong Hong Li
  • , Wen Jun Wang
  • *此作品的通讯作者
  • Beijing Institute of Technology

科研成果: 期刊稿件文章同行评审

摘要

OBJECTIVE: To synthesize and analyze the novel enteric-coating material HPMCAS. METHODS: The structure and properties of HPMCAS were analyzed by IR, UV, TGA and chemical analysis. The solubility of HPMCAS in organic solvents was tested. The viscosity curves in the acetone-ethanol-water system, tensile strength and ultimate elongation of free films prepared by HPMCAS were determined, and HPMCAS was compared with AS-LG. RESULTS: The contents of acidic succinyl groups and acetyl groups in HPMCAS were related with the addition of two anhydrides. The dichloromethane-ethanol system was the excellent solvent for HPMCAS. HPMCAS was stable below 200 T and lose weight quickly over 200 °C. CONCLUSION: The physical and chemical properties of HPMCAS were almost the same as those of AS-LG.

源语言英语
页(从-至)846-849
页数4
期刊Chinese Pharmaceutical Journal
40
11
出版状态已出版 - 6月 2005

指纹

探究 'Characterization of hydroxypropyl methylcellulose acetate succinate' 的科研主题。它们共同构成独一无二的指纹。

引用此