Thiol-Ene versus Binary Thiol-Acrylate Chemistry: Material Properties and Network Characteristics of Photopolymers

被引：36
|
作者：
Sahin, Melahat [1 ]
Ayalur-Karunakaran, Santhosh [1 ]
Manhart, Jakob [1 ]
Wolfahrt, Markus [1 ]
Kern, Wolfgang [2 ]
Schloegl, Sandra [1 ]
机构：
[1] Polymer Competence Ctr Leoben GmbH, Roseggerstr 12, A-8700 Leoben, Austria
[2] Univ Leoben, Chair Chem Polymer Mat, Otto Glockel Str 12, A-8700 Leoben, Austria
来源：
ADVANCED ENGINEERING MATERIALS | 2017年 / 19卷 / 04期
关键词：
CLICK CHEMISTRY; IMPRINT LITHOGRAPHY; CROSS-LINKING; RUBBER LATEX; STEP; COATINGS; FILM; PREVULCANIZATION; POLYMERS; KINETICS;
D O I：
10.1002/adem.201600620
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The versatile nature of photo-induced thiol-ene chemistry has made it one of the most popular reactions in the design of polymer networks. In the present work, the structure of uniform thiol-ene and complex binary thiol-acrylate networks are studied in detail by photopolymerizing cycloaliphatic and linear alkyl thiols with an allyl monomer and its acrylic counterpart. Along with the crosslink kinetics, the balance between step growth and chain growth mechanism of the two different systems is investigated by FT-IR spectroscopy. Low field NMR experiments are carried out to obtain an insight into the chain dynamics and structure of the photopolymer networks. In addition, tensile properties and glass transition temperature are determined to correlate network properties with mechanical performance.
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页数：10
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