PREPARATION OF MACRO AZO INITIATOR VIA CATIONIC POLYMERIZATION

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CAKMAK I.

JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY, pp.333-337, 1994 (SCI-Expanded)

• Publication Type: Article / Article
• Volume:
• Publication Date: 1994
• Journal Name: JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.333-337
• Karadeniz Technical University Affiliated: No

Abstract

Cationic polymerization of styrene(St) initiated by 4,4'-azo bis(4-cyanopentanoyl chloride)(ACPC) and SnCl4 is described. Polystyrene samples possessing azo groups thus obtained were used in the polymerization of methyl methacrylate(MMA) at 70-degrees-C to obtain styrene-methyl methacrylate block copolymers. Characterization of block copolymers was carried out by fractional precipitation and spectroscopic methods.