首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Properties of oil1/water/oil2 double emulsions containing lipophilic acrylic polymer
Authors:N M Zadymova  M V Poteshnova  V G Kulichikhin
Institution:1. Department of Chemistry, Moscow State University, Moscow, 119992, Russia
Abstract:Stable oil1/water/oil2 (o1/w/o2) double emulsions (DEs) containing glyceryl monooleate as a promoter of skin permeability in internal ultradispersed phase o1 (heptane) and an acrylic polymer as a pressuresensitive adhesive in external dispersion medium o2 (ethyl acetate) are obtained. The aqueous interlayer of the DEs contains Tween 80, hydroxypropyl cellulose, and sometimes lysozyme. The phase ratio in the emulsions is constant. The effect of polyacrylate concentration on the stability, microstructure, and rheological properties of DEs is studied. Factors of DE stability, with the viscoelastic properties of the external dispersion medium being of the most importance, are analyzed. The DEs are used to produce ultradisperse films, which exhibit long-term release of lysozyme at a constant rate with its enzymatic activity retained preserved. The diffusion coefficient of the protein in the polymer matrix is determined.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号