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Formation of ordered microporous films with water as templates from poly( D,L ‐lactic‐ co ‐glycolic acid) solution
Author(s) -
Zhao Xiaoyong,
Cai Qing,
Shi Guixin,
Shi Yanqiao,
Chen Guanwen
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.12836
Subject(s) - copolymer , template , microporous material , materials science , polymer , chemical engineering , honeycomb , polymer chemistry , glycolic acid , amphiphile , nanotechnology , lactic acid , composite material , biology , bacteria , engineering , genetics
Recently a method that uses water droplets at the air–solution interface as an ordered template was reported for the preparation of ordered micrometer‐size honeycomb structures. Here we show that the method can also be used for formation of honeycomb‐like porous films from random copolymers with certain hydrophilicity, besides those polymers with defined structures such as block copolymers, starlike homopolymers, amd amphiphilic polymers. This demonstrates that the stabilization of water droplets is the key factor for the regular structure. Also we indicate that size and structure of the films can be regulated by such variables as concentration and atmospheric humidity. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 1846–1850, 2003