Synthesis and photoinitiated cationic polymerization of mono- and bifunctional 2,3-dihydrofuran derivatives

Abstract

Mono-and bifunctional monomers with 2,3-dihydrofuran moieties were synthesized by Heck-reaction of 2,5-dihydrofuran with various aryliodides. The bifunctional monomers contained either rigid phenyl and biphenyl or exible ether linkages. The synthesized monomers were polymerized by photoinduced cationic polymerization by using triphenylsulphonium-hexa uorophosphate as the photoacid generator. Depending upon the type of monomers used, soluble polymers and insoluble networks were readily formed. The thermal properties of the polymers were studied via Differential Scanning Calorimetry (DSC) and Scanning Thermal Analysis (STA).