Effects of Monomer Functionality and Hydrogen Bonding on the Polymerization Kinetics and Properties of Thiol-Ene Networks
Document Type
Article
Publication Date
4-28-2009
Department
Polymers and High Performance Materials
Abstract
The effect of hydrogen bonding on both the kinetics and physical properties of photopolymerized thiol-ene systems has been determined by comparison of two thiol-ene systems, [butyl 3-mercaptopropionate/pentacrythritol tetrakis(3-mercaptopropionate)]/triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione and [3-mercaptopropionic acid/pentaerythritol tetrakis(3-mercaptopropionate)]/triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione. Hydrogen bonding in the thiol-ene network incorporating 3-mercaptopropionic acid leads to enhanced glass transition temperatures, refractive index, Persoz hardness, elastic modulus values, isothermal enthalpic relaxation, and rubbery-glassy heat capacity differences compared to networks formed using butyl 3-mercaptopropionate. Sub T(g) aging analysis clearly shows that hydrogen bonding affects the isothermal enthalpic relaxation process.
Publication Title
Macromolecules
Volume
42
Issue
8
First Page
2994
Last Page
2999
Recommended Citation
Zhou, H.,
Li, Q.,
Shin, J.,
Hoyle, C. E.
(2009). Effects of Monomer Functionality and Hydrogen Bonding on the Polymerization Kinetics and Properties of Thiol-Ene Networks. Macromolecules, 42(8), 2994-2999.
Available at: https://aquila.usm.edu/fac_pubs/1364