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Title: Front velocity dependence on vinyl ether and initiator concentration in radical‐induced cationic frontal polymerization of epoxies
Abstract

Formulations containing vinyl ethers and epoxy were successfully polymerized through a radical‐induced cationic frontal polymerization mechanism, using an iodonium salt superacid generator with a peroxide thermal radical initiator and fumed silica as a filler. It was found that an increase of vinyl ether content resulted in higher front velocities for divinyl ethers in formulations with trimethylolpropane triglycidyl ether. However, increased hydroxymonovinyl ether either decreased the front velocity or suppressed frontal polymerization. The kinetic effects of the superacid generator and thermal radical initiator with varying vinyl ether content were also studied. It was observed that increasing concentrations of initiators increased the front velocity, with the system exhibiting higher sensitivity to the superacid generator concentration.

 
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Award ID(s):
1946231
NSF-PAR ID:
10449335
Author(s) / Creator(s):
 ;  ;  ;  
Publisher / Repository:
Wiley Blackwell (John Wiley & Sons)
Date Published:
Journal Name:
Journal of Polymer Science
Volume:
59
Issue:
15
ISSN:
2642-4150
Page Range / eLocation ID:
p. 1678-1685
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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