Role of Initiator Structure on Thiol-Ene Polymerization: A Comprehensive Theoretical Study

Autor: İsa DEGİRMENCİ
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Volume: 9, Issue: 1 149-162
Journal of the Turkish Chemical Society Section A: Chemistry
Journal of the Turkish Chemical Society, Section A: Chemistry, Vol 9, Iss 1, Pp 149-162 (2022)
ISSN: 2149-0120
Popis: In this study, the effects of initiator structure on thiol-ene polymerization were investigated with two initiators, four thiols, and eight monomers by utilizing the M06-2X/6-31++G(d,p) level of theory. For this purpose, a comparative investigation was carried out by modeling hydrogen abstraction from thiols (kHA) and addition reaction to monomers (ki), which is considered a side reaction. It was confirmed that the 2,2-dimethoxy-2-phenylacetophenone (DMPA) initiator is a suitable thiol-ene initiator except for the polymerization of electron-deficient or conjugated monomers. It was determined that the azobisisobutyronitrile (AIBN) initiator could not give a homogeneous thiol-ene product regardless of the monomer structure. However, it has been found that aromatic thiols should be used to obtain relatively better results with this initiator.
Databáze: OpenAIRE