Benzophenone based addition fragmentation agent for photoinitiated cationic polymerization

Seda Yurteri; Aysen Onen; Yusuf Yagci

doi:10.1016/S0014-3057(02)00052-6

Benzophenone based addition fragmentation agent for photoinitiated cationic polymerization

Seda Yurteri, Aysen Onen^*, Yusuf Yagci

^*Corresponding author for this work

Department of Chemistry

Istanbul Technical University

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

24 Citations (Scopus)

Abstract

Photoactive allyl ammonium salt (BPEA) containing benzophenone moiety in the structure was synthesized and characterized. Its capability to act as a self-initiating addition fragmentation agent in the photoinitiated cationic polymerization of oxiranes such as cyclohexene oxide and vinyl monomers such as butylvinyl ether was investigated. These monomers turned out to be polymerizable in the presence of BPEA provided free radicals are generated photochemically at λ > 300 nm by hydrogen abstraction of excited benzophenone moiety. Accordingly, a free radical adds to the carbon-carbon double bond of a ground state BPEA and fragmentation of the adduct radical results in the formation of reactive ammonium radical cation which is essentially responsible for the initiation.

Original language	English
Pages (from-to)	1845-1850
Number of pages	6
Journal	European Polymer Journal
Volume	38
Issue number	9
DOIs	https://doi.org/10.1016/S0014-3057(02)00052-6
Publication status	Published - Sept 2002

Keywords

Addition fragmentation reactions
Benzophenone
Photoinitiated cationic polymerization

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10.1016/S0014-3057(02)00052-6

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title = "Benzophenone based addition fragmentation agent for photoinitiated cationic polymerization",

abstract = "Photoactive allyl ammonium salt (BPEA) containing benzophenone moiety in the structure was synthesized and characterized. Its capability to act as a self-initiating addition fragmentation agent in the photoinitiated cationic polymerization of oxiranes such as cyclohexene oxide and vinyl monomers such as butylvinyl ether was investigated. These monomers turned out to be polymerizable in the presence of BPEA provided free radicals are generated photochemically at λ > 300 nm by hydrogen abstraction of excited benzophenone moiety. Accordingly, a free radical adds to the carbon-carbon double bond of a ground state BPEA and fragmentation of the adduct radical results in the formation of reactive ammonium radical cation which is essentially responsible for the initiation.",

keywords = "Addition fragmentation reactions, Benzophenone, Photoinitiated cationic polymerization",

author = "Seda Yurteri and Aysen Onen and Yusuf Yagci",

year = "2002",

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doi = "10.1016/S0014-3057(02)00052-6",

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T1 - Benzophenone based addition fragmentation agent for photoinitiated cationic polymerization

AU - Yurteri, Seda

AU - Onen, Aysen

AU - Yagci, Yusuf

PY - 2002/9

Y1 - 2002/9

N2 - Photoactive allyl ammonium salt (BPEA) containing benzophenone moiety in the structure was synthesized and characterized. Its capability to act as a self-initiating addition fragmentation agent in the photoinitiated cationic polymerization of oxiranes such as cyclohexene oxide and vinyl monomers such as butylvinyl ether was investigated. These monomers turned out to be polymerizable in the presence of BPEA provided free radicals are generated photochemically at λ > 300 nm by hydrogen abstraction of excited benzophenone moiety. Accordingly, a free radical adds to the carbon-carbon double bond of a ground state BPEA and fragmentation of the adduct radical results in the formation of reactive ammonium radical cation which is essentially responsible for the initiation.

AB - Photoactive allyl ammonium salt (BPEA) containing benzophenone moiety in the structure was synthesized and characterized. Its capability to act as a self-initiating addition fragmentation agent in the photoinitiated cationic polymerization of oxiranes such as cyclohexene oxide and vinyl monomers such as butylvinyl ether was investigated. These monomers turned out to be polymerizable in the presence of BPEA provided free radicals are generated photochemically at λ > 300 nm by hydrogen abstraction of excited benzophenone moiety. Accordingly, a free radical adds to the carbon-carbon double bond of a ground state BPEA and fragmentation of the adduct radical results in the formation of reactive ammonium radical cation which is essentially responsible for the initiation.

KW - Addition fragmentation reactions

KW - Benzophenone

KW - Photoinitiated cationic polymerization

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U2 - 10.1016/S0014-3057(02)00052-6

DO - 10.1016/S0014-3057(02)00052-6

M3 - Article

AN - SCOPUS:0036722507

SN - 0014-3057

VL - 38

SP - 1845

EP - 1850

JO - European Polymer Journal

JF - European Polymer Journal

IS - 9

ER -

Benzophenone based addition fragmentation agent for photoinitiated cationic polymerization

Abstract

Keywords

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