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/ pentaerythritol 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-Tg aging analysis clearly shows that hydrogen bonding affects the isothermal enthalpic relaxation process.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
