Vinyl ethers and epoxides photoinduced copolymerization with perfluoropolyalkylether monomers

Abstract

New perfluoropolyalkylether (PFPAE) monomers, chain extended with different alkyl groups and functionalized with vinyl ether or epoxide end-groups, were employed, together with trimethylolpropane trivinyl ether or trimethylolpropane triglycidyl ether, to produce fluorinated copolymers. The photoinduced cationic polymerization was investigated, and the PFPAE-based copolymer properties were thoroughly characterized. Interesting surface properties and two different values of refractive index were observed: thus, these fluorinated copolymers can be suitable materials for the manufacture of self-cleaning coatings and optical waveguides.

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

“…2,3 Cationic photopolymerizations of vinyl ethers have been studied extensively, both as homopolymers and comonomer systems. [4][5][6][7][8][9][10] Frontal polymerization (FP) was discovered by Chechilo and Enikolopyan 11 and studied in Russia by their group and others through the 1970s and 1980s. [12][13][14][15] It was rediscovered by Pojman and studied in the 1990s [16][17][18] and has seen recent rapid growth through applications such as composites, 19,20 cure-on demand materials and adhesives, 21,22 deep-eutectic solvents 23 and hydrogels.…”

“…They typically see applications in coatings due to good adhesion with metal and wood, fast cure rate due to reactivity, low toxicity, insensitivity to oxygen and the cationic mechanism allowing for formulations with other comonomers 2,3 . Cationic photopolymerizations of vinyl ethers have been studied extensively, both as homopolymers and comonomer systems 4–10 …”

Free-Radical Photopolymerization for Curing Products for Refinish Coatings Market

“…Photoinduced processes have gained attention and have led to the implementation of technological developments towards new polymeric products [ 57 , 58 ]. Despite the applications of polymerization photoinitiating systems in migration polymerization [ 59 ], one of the major disadvantages of free radical photopolymerization is its susceptibility to oxygen inhibition.…”

Recent advances on benzylidene cyclopentanones as visible light photoinitiators of polymerization

“…Epoxy-based polymers are extensively studied as the volume shrinkage is considerably reduced compared to that observed with poly(acrylates). [322][323][324][325][326] Figure 6. Chemical structures of BHMBCP, BHMBCH and epichlorohydrin.…”