Journal Article

·1995

The Effect of Cationic Salt on Photoinitiated Free Radical Polymerization Using Polysilanes

Nergis Arsu YTU , Gürkan Hızal , Yusuf Yağcı YTU

Journal of Macromolecular Science Part A

Abstract

Abstract Photoinitiated free radical polymerization of methylmethacrylate (MMA), (Nisopropylcarbamate) ethylpropenoate (CL-960) and tripropyleneglycol diacrylate (TPGDA) by using polysilanes in the presence of N-ethoxy-2 methyl pyridinium hexafluorophosphate (EMP+ PF6) and diphenyliodonium hexaflurophosphate (Ph2l+ PF6) was studied. In the presence of the cationic salts the rate of photopolymerization was significantly increased The effect was attributed to the oxidation of silyl radicals formed from the photoscission of polysilane by pyridinium or diphenliodonium salts. The resulting radicals species are more capable of initiating the radical polymerization.

Keywords

Cationic polymerization Photopolymer Pyridinium Polysilane Radical Polymerization Hexafluorophosphate Chemistry Polymer chemistry Photochemistry Radical polymerization Alkoxy group Silylation Organic chemistry Polymer Catalysis Ionic liquid Alkyl

Subject Areas

Photopolymerization techniques and applications ·Organic Chemistry ·Physical Sciences
Synthesis and characterization of novel inorganic/organometallic compounds ·Inorganic Chemistry ·Physical Sciences
Silicone and Siloxane Chemistry ·Materials Chemistry ·Physical Sciences

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