Kinetic Features of Photoinduced Radical (Co)Polymerization of Ionic Monomers

A number of methacrylate ionic monomers with different ionic center nature, spacer structure, and position of the polymerizing group (in anion or cation) are synthesized. The kinetics of their photoinitiated radical (co)polymerization is studied by the thermographic method. Effects of the structure...

Full description

Saved in:
Bibliographic Details
Published in:Polymer science. Series B 2018-11, Vol.60 (6), p.760-771
Main Authors: Kovylin, R. S., Chesnokov, S. A., Shaplov, A. S., Vlasov, P. S., Ponkratov, D. O., Lozinskaya, E. I., Vygodskii, Ya. S.
Format: Article
Language:English
Subjects:
Cationic polymerization
Chemical industry
Chemical synthesis
Chemistry
Chemistry and Materials Science
Copolymerization
Crosslinking
Ethylene glycol
Functional Polymers
Monomers
Photopolymerization
Polymer Sciences
Polymerization
Process parameters
Reaction kinetics
Thermography
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A number of methacrylate ionic monomers with different ionic center nature, spacer structure, and position of the polymerizing group (in anion or cation) are synthesized. The kinetics of their photoinitiated radical (co)polymerization is studied by the thermographic method. Effects of the structure of ionic monomer, its ratio with the crosslinking agent poly(ethylene glycol dimethacrylate) (PEGDM-750) in the photopolymerizing composition, and the nature of the reaction medium on the kinetic parameters of the process, namely, the maximum rate W max , the degree of conversion Г , and the time of induction period t ind , are investigated. It is shown that, among the studied methacrylic monomers, anionic monomer N -butyl- N -methylpyrrolidinium 1-[3-(methacryloyloxy)propylsulfonyl] (trifluoromethanesulfonyl)imide (ILM-5) exhibits the highest reactivity in both bulk and solution (in ionic medium) photopolymerization: W max = 69 × 10 –3 s –1 and Г = 85% and W max = 60 × 10 –3 s –1 and Г = 90%, respectively. For most cationic monomers, better results in homopolymerization are achieved in dimethylformamide. The kinetic features of the radical copolymerization of the ionic monomers with PEGDM-750 are studied. It is shown that, with a growing fraction of the crosslinking agent in the monomer mixture, W max and Г increase regardless of whether the process occurs in bulk or solution.
ISSN:1560-0904
1555-6123
DOI:10.1134/S1560090418060088