Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 22, Issue 9, Pages 3817-3824Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm15484f
Keywords
-
Funding
- National Science Foundation [NSF SCIART DMR-1041853]
- National Science Foundation through the University of Southern Mississippi [0947944]
- NSF-REU [DMR-1005127]
- Office of Naval Research [N00014-07-1-1057]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1005127, 1041853] Funding Source: National Science Foundation
- Div Of Industrial Innovation & Partnersh
- Directorate For Engineering [0917730] Funding Source: National Science Foundation
Ask authors/readers for more resources
In this work, organic-inorganic hybrid materials containing stable silanol functionalities were designed by incorporating cyclic tetravinylsiloxanetetraols into photopolymerized polymer networks via the thiol-ene reaction, with the intent of tailoring the thermal and mechanical properties of the resulting materials. The effects of the cyclic tetravinylsiloxanetetraols concentration on the thermomechanical properties and thermal stability of pentaerythritol triallyl ether/pentaerythritol tetra(3-mercaptopropionate) (APE-PETMP) and allyl isocyanurate/pentaerythritol tetra(3-mercaptopropionate) (TTT-PETMP) ternary networks were evaluated using dynamic thermomechanical analysis and thermogravimetric analysis, respectively. Photopolymerization kinetics were monitored using real-time FTIR. Interestingly, an increase in glass transition temperature was observed with the APE-PETMP networks while a decrease in glass transition temperature was observed for the TTT-PETMP networks with increasing concentration of [Vi(OH)SiO](4). These observations are discussed in terms of cross-link density and monomer rigidity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available