SYNTHESIS AND CHARACTERIZATION OF EPOXY-CHAIN END(S) FUNCTIONAL MACROMONOMER OF POLYSTYRENE AND ITS USE IN PHOTOINITIATED CATIONIC POLYMERIZATION

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DEGIRMENCI MUSTAFA; GENLI NASRETTIN

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Journal: Iranian Polymer Journal Year:2014 | Volume:23 | Issue:6 Page(s): 457-468

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Title

SYNTHESIS AND CHARACTERIZATION OF EPOXY-CHAIN END(S) FUNCTIONAL MACROMONOMER OF POLYSTYRENE AND ITS USE IN PHOTOINITIATED CATIONIC POLYMERIZATION

Author(s)

DEGIRMENCI MUSTAFA | GENLI NASRETTIN | Issue Writer Certificate

Keywords

AZO INITIATOR

COPOLYMERIZATION

FUNCTIONALIZATION OF POLYMERS

GRAFT COPOLYMERS

MACROMONOMERS

Abstract

A novel epoxy chain-end(s) functional polystyrene macromonomer (PSt-CHO) was prepared via free radical polymerization (FRP) of styrene (St) initiated by 4,4′-azobis(3-cyclohexenylmethyl-4-cyanopentanoate) (ACCP) AZO INITIATOR and epoxidation on workup with 3-chloroperoxybenzoic acid under inert atmosphere in methylene chloride at 0oC. 4,4'-Azobis(4-cyanopentanoyl chloride) (ACPC) was obtained by the reaction of 4,4′-azobis(4-cyanopentanoic acid) (ACPA) with phosphorus pentachloride in methylene chloride. The ACCP was synthesized by the condensation reaction of 3-cyclohexene-1-methanol with ACPC. The FRP of styrene with ACCP has yielded polystyrene with cyclohexene end(s) group (PSt-CH). Epoxidation of the PSt-CH was performed using 3-chloroperoxybenzoic acid to obtain epoxy chain-end(s) functional polystyrene macromonomer (PSt-CHO). This macromonomer was used as precursor in photoinitiated cationic polymerization for obtaining brush-type and GRAFT COPOLYMERS. Photoinitiated cationic homopolymerization of the macromonomer in the presence of diphenyliodonium salt at l= 300 nm yielded brush-type polymers. Photoinitiated cationic COPOLYMERIZATION of the macromonomer with cyclohexene oxide (CHO) monomer and diphenyliodonium salt at l= 350 nm produced GRAFT COPOLYMERS. The polymers synthesized were characterized by means of FTIR, 1HNMR and gel permeation chromatography measurements. All the spectroscopic studies revealed that a macromonomer of polystyrene with cyclohexene oxide (CHO) functionality at the chain end(s) (PSt-CHO) and their brush-type and GRAFT COPOLYMERS were obtained.

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APA: Copy

DEGIRMENCI, MUSTAFA, & GENLI, NASRETTIN. (2014). SYNTHESIS AND CHARACTERIZATION OF EPOXY-CHAIN END(S) FUNCTIONAL MACROMONOMER OF POLYSTYRENE AND ITS USE IN PHOTOINITIATED CATIONIC POLYMERIZATION. IRANIAN POLYMER JOURNAL (ENGLISH), 23(6), 457-468. SID. https://sid.ir/paper/635088/en

Vancouver: Copy

DEGIRMENCI MUSTAFA, GENLI NASRETTIN. SYNTHESIS AND CHARACTERIZATION OF EPOXY-CHAIN END(S) FUNCTIONAL MACROMONOMER OF POLYSTYRENE AND ITS USE IN PHOTOINITIATED CATIONIC POLYMERIZATION. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2014;23(6):457-468. Available from: https://sid.ir/paper/635088/en

IEEE: Copy

MUSTAFA DEGIRMENCI, and NASRETTIN GENLI, “SYNTHESIS AND CHARACTERIZATION OF EPOXY-CHAIN END(S) FUNCTIONAL MACROMONOMER OF POLYSTYRENE AND ITS USE IN PHOTOINITIATED CATIONIC POLYMERIZATION,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 23, no. 6, pp. 457–468, 2014, [Online]. Available: https://sid.ir/paper/635088/en

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