Thiol–Ene Linear Step-Growth Photopolymerization in Miniemulsion: Fast Rates, Redox-Responsive Particles, and Semicrystalline Films

详细信息    查看全文

• 作者：Florent Jasinski ; Agnès Rannée ; Julie Schweitzer ; Diane Fischer ; Emeline Lobry ; Céline Croutxé-Barghorn ; Marc Schmutz ; Didier Le Nouen ; Adrien Criqui ; Abraham Chemtob
• 刊名：Macromolecules
• 出版年：2016
• 出版时间：February 23, 2016
• 年：2016
• 卷：49
• 期：4
• 页码：1143-1153
• 全文大小：648K
• ISSN：1520-5835

文摘

Radical step-growth photopolymerization of dithiol–diene monomer miniemulsion is shown to be a highly efficient, robust, and versatile route to generate film-forming linear poly(thioether) latexes. At extremely fast rates, the process results in high-molecular-weight polysulfide products, exhibiting both semicrystalline and oxidation-responsive properties. Four key issues are addressed as regards the practical implementation of this novel UV-driven waterborne technology: the preparation of a photolatent and colloidally stable thiol–ene monomer miniemulsion, the identification of key experimental parameters controlling reaction kinetics and polymer microstructure, the characterization of film semicrystallinity, and the application of poly(thioether ester) latexes as dual-stimuli-responsive nanocarriers sensitive to both oxidation and hydrolysis.