Synthesis and Characteristics of Poly(methacrylic acid-co-N-isopropylacrylamide) Thermosensitive Composite Hollow Latex Particles and Their Application as Drug Carriers

doi:10.1002/pola.26950

CNU IR > Pharmacy and Science > Dept. of Cosmetic Science and institute of cosmetic science > Periodical Articles > Item 310902800/27935

Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/27935

Title:	Synthesis and Characteristics of Poly(methacrylic acid-co-N-isopropylacrylamide) Thermosensitive Composite Hollow Latex Particles and Their Application as Drug Carriers
Authors:	Pan, Tzu-Yu Lee, Chia-Fen Chu, Chun-Hsun
Contributors:	化妝品應用與管理系
Keywords:	Control Release Core-Shell Polymers Emulsion Polymerization Hollow Latex Particles Latices Lcst Soapless Emulsion Polymerization Thermosensitive
Date:	2013-12
Issue Date:	2014-05-26 10:49:40 (UTC+8)
Publisher:	Wiley-Blackwell
Abstract:	In this work, the poly(methacrylic acid-co-N-isopropylacrylamide) thermosensitive composite hollow latex particles was synthesized by a three-step reaction. The first step was to synthesize the poly(methyl methacrylate-co-methacrylic acid) (poly(MMA-MAA)) copolymer latex particles by the method of soapless emulsion polymerization. The second step was to polymerize methacrylic acid (MAA), N-isopropylacrylamide (NIPAAm), and N,N-methylenebisacrylamide in the presence of poly(MMA-MAA) latex particles to form the linear poly(methyl methacrylate-co-methacrylic acid)/crosslinking poly(methacrylic acid-co-N-isopropylacrylamide) (poly(MMA-MAA)/poly(MAA-NIPAAm)) core-shell latex particles. In the third step, the core-shell latex particles were heated in the presence of ammonia solution to form the crosslinking poly(MAA-NIPAAm) thermosensitive hollow latex particles. The morphologies of poly(MMA-MAA)/poly(MAA-NIPAAm) core-shell latex particles and poly(MAA-NIPAAm) hollow latex particles were observed. The influences of crosslinking agent and shell composition on the lower critical solution temperature of poly(MMA-MAA)/poly(MAA-NIPAAm) core-shell latex particles and poly(MAA-NIPAAm) hollow latex particles were, respectively, studied. Besides, the poly(MAA-NIPAAm) thermosensitive hollow latex particles were used as carriers to load with the model drug, caffeine. The effect of various variables on the amount of caffeine loading and the efficiency of caffeine release was investigated. (c) 2013 Wiley Periodicals, Inc.
Relation:	Journal of Polymer Science Part A-Polymer Chemistry, v.51 n.24 pp.5203-5214
Appears in Collections:	[Dept. of Cosmetic Science and institute of cosmetic science] Periodical Articles

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