Block copolymers by combination of cationic and radical routes: 5. Polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride)

Gurkan Hizal; Huseyin Tasdemir; Yusuf Yagci

doi:10.1016/0032-3861(90)90206-E

Block copolymers by combination of cationic and radical routes: 5. Polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride)

Gurkan Hizal, Huseyin Tasdemir, Yusuf Yagci^*

^*Corresponding author for this work

Department of Chemistry

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The kinetics of the polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride) (ACPC) was investigated in bulk and in benzene solution at 60°C. It was found that the overall rate of polymerization is proportional to the 0.48 power of the initiator concentration. The chain transfer-to-initiator and chain transfer-to-solvent constants were estimated to be C_I = 0.41 and C_S = 1.9 × 10^-4, respectively. Polymerization of styrene initiated by ACPC yields polystyrene with an acyl chloride terminal group at each end. Polymerization of tetrahydrofuran initiated by acyl chloride-terminated polystyrene in conjunction with AgSbF₆ provided the formation of a block copolymer.

Original language	English
Pages (from-to)	1803-1806
Number of pages	4
Journal	Polymer
Volume	31
Issue number	9
DOIs	https://doi.org/10.1016/0032-3861(90)90206-E
Publication status	Published - Sept 1990

Funding

The financial support of ITU Malzeme Bilimleri ve Uretim Teknoloji Uygar Merkezi is gratefully acknowledged. We also thank the Alexander von Humboldt Foundation for donating the gel permeation chromatography instrument.

Funders	Funder number
ITU Malzeme Bilimleri ve Uretim Teknoloji Uygar Merkezi

Keywords

block copolymer
cationic polymerization
chain transfer reaction
free-radical polymerization

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10.1016/0032-3861(90)90206-E

Cite this

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title = "Block copolymers by combination of cationic and radical routes: 5. Polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride)",

abstract = "The kinetics of the polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride) (ACPC) was investigated in bulk and in benzene solution at 60°C. It was found that the overall rate of polymerization is proportional to the 0.48 power of the initiator concentration. The chain transfer-to-initiator and chain transfer-to-solvent constants were estimated to be CI = 0.41 and CS = 1.9 × 10-4, respectively. Polymerization of styrene initiated by ACPC yields polystyrene with an acyl chloride terminal group at each end. Polymerization of tetrahydrofuran initiated by acyl chloride-terminated polystyrene in conjunction with AgSbF6 provided the formation of a block copolymer.",

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author = "Gurkan Hizal and Huseyin Tasdemir and Yusuf Yagci",

year = "1990",

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doi = "10.1016/0032-3861(90)90206-E",

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T1 - Block copolymers by combination of cationic and radical routes

T2 - 5. Polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride)

AU - Hizal, Gurkan

AU - Tasdemir, Huseyin

AU - Yagci, Yusuf

PY - 1990/9

Y1 - 1990/9

N2 - The kinetics of the polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride) (ACPC) was investigated in bulk and in benzene solution at 60°C. It was found that the overall rate of polymerization is proportional to the 0.48 power of the initiator concentration. The chain transfer-to-initiator and chain transfer-to-solvent constants were estimated to be CI = 0.41 and CS = 1.9 × 10-4, respectively. Polymerization of styrene initiated by ACPC yields polystyrene with an acyl chloride terminal group at each end. Polymerization of tetrahydrofuran initiated by acyl chloride-terminated polystyrene in conjunction with AgSbF6 provided the formation of a block copolymer.

AB - The kinetics of the polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride) (ACPC) was investigated in bulk and in benzene solution at 60°C. It was found that the overall rate of polymerization is proportional to the 0.48 power of the initiator concentration. The chain transfer-to-initiator and chain transfer-to-solvent constants were estimated to be CI = 0.41 and CS = 1.9 × 10-4, respectively. Polymerization of styrene initiated by ACPC yields polystyrene with an acyl chloride terminal group at each end. Polymerization of tetrahydrofuran initiated by acyl chloride-terminated polystyrene in conjunction with AgSbF6 provided the formation of a block copolymer.

KW - block copolymer

KW - cationic polymerization

KW - chain transfer reaction

KW - free-radical polymerization

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DO - 10.1016/0032-3861(90)90206-E

M3 - Article

AN - SCOPUS:0025491202

SN - 0032-3861

VL - 31

SP - 1803

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JO - Polymer

JF - Polymer

IS - 9

ER -

Block copolymers by combination of cationic and radical routes: 5. Polymerization of styrene initiated by 4,4′-azobis(4-cyanopentanoyl chloride)

Abstract

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Keywords

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