Premium
The formation of the S ‐shaped edge‐on lamellae on the thin porous polylactic acid membrane via phase separation induced by water microdroplets
Author(s) -
Hu Ruiqing,
Pi Yuping,
Wang Na,
Zhang Qian,
Feng Jinqi,
Xu Weilin,
Dong Xia,
Wang Dujin,
Yang Hongjun
Publication year - 2016
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.43355
Subject(s) - polylactic acid , biopolymer , distilled water , polymer , membrane , chemical engineering , porosity , materials science , porous medium , solvent , phase (matter) , biocompatibility , polymer chemistry , chemistry , chromatography , composite material , organic chemistry , biochemistry , engineering
Biodegradable polymers have received increased attention due to their potential application in the medicine and food industries; in particular, poly(lactic acid) (PLA) is a primary biopolymer because of its excellent biocompatibility and absorbability features. In this study, a porous PLA membrane was fabricated by phase separation using water microdroplets produced by an ultrasonic atomizer as a coagulation bath. The formation of S‐type clusters was attributed to the slow exchange rate between solvent and coagulant, which provided time for the movement of polymer molecules. The effect of preparation conditions on the structure of S‐type clusters, including polymer concentration in solution and ambient temperature was investigated. The PLA porous membrane prepared from water micro‐droplets with different morphology compared with the sample fabricated from distilled water has potential application in fields of tissue engineering and artificial organ generation. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43355.