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UV-cured, platinum-free, soft poly(dimethylsiloxane) networks
K Goswami1, A L Skov, A E Daugaard
1Danish Polymer Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark, DTU, Søltofts Plads, Building 229, 2800, Kgs. Lyngby (Denmark), Fax: (+45) 4588-2161.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|July 22, 2014
Summary
Photoinitiated thiol-ene cross-linking offers a novel method for creating soft poly(dimethylsiloxane) (PDMS) networks. This approach overcomes limitations of platinum-catalyzed silicone curing, yielding highly flexible PDMS elastomers.
Area of Science:
- Polymer Chemistry
- Materials Science
Background:
- Platinum-catalyzed curing of silicones presents limitations.
- Development of alternative cross-linking methods is needed for advanced silicone materials.
Purpose of the Study:
- Investigate photoinitiated thiol-ene cross-linking for poly(dimethylsiloxane) (PDMS) prepolymers.
- Develop novel soft PDMS networks using commercially available materials.
Main Methods:
- Employed a two-step cross-linking reaction.
- Utilized photoinitiation for thiol-ene chemistry.
Main Results:
- Successfully prepared highly flexible PDMS elastomers.
- Demonstrated a fast and efficient cross-linking process.
Conclusions:
- Photoinitiated thiol-ene cross-linking is a viable alternative to platinum catalysis for silicone curing.
- This method enables the creation of novel, soft PDMS networks with high flexibility.
