Photoinitiated cationic polymerization of mono and divinyl ethers in aqueous medium using ytterbium triflate as lewis acid

Muhammet U. Kahveci; M. Atilla Tasdelen; Wayne D. Cook; Yusuf Yagci

doi:10.1002/macp.200800304

Photoinitiated cationic polymerization of mono and divinyl ethers in aqueous medium using ytterbium triflate as lewis acid

Muhammet U. Kahveci, M. Atilla Tasdelen, Wayne D. Cook, Yusuf Yagci^*

^*Corresponding author for this work

Department of Chemistry

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

32 Citations (Scopus)

Abstract

Photoinitiated cationic polymerization of vinyl ethers in aqueous medium by using diphe-nyliodonium iodide (DPII) in the presence of a water-tolerant Lewis acid, ytterbium triflate (Yb(OTf)₃), was reported. The polymerizations were performed in heterogeneous systems consisting of an aqueous phase containing Yb(OTf)₃ and photoinitiator and an organic phase of acetonitrile containing monomer. The polymerization consists of two-steps; (i) photoin-duced adduct formation and (ii) subsequent propagation with the aid of Yb(OTf)₃. The fast polymerization exhibited an explosive character so that the monomer conversion and molecular weights of the resulting polymers are very dependent on the experimental conditions, such as temperature, stirring manner and rate.

Original language	English
Pages (from-to)	1881-1886
Number of pages	6
Journal	Macromolecular Chemistry and Physics
Volume	209
Issue number	18
DOIs	https://doi.org/10.1002/macp.200800304
Publication status	Published - 22 Sept 2008

Keywords

Aqueous photopolymerization
Cationic polymerization
Iodonium salt
Vinyl ether
Ytterbium triflate

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10.1002/macp.200800304

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title = "Photoinitiated cationic polymerization of mono and divinyl ethers in aqueous medium using ytterbium triflate as lewis acid",

abstract = "Photoinitiated cationic polymerization of vinyl ethers in aqueous medium by using diphe-nyliodonium iodide (DPII) in the presence of a water-tolerant Lewis acid, ytterbium triflate (Yb(OTf)3), was reported. The polymerizations were performed in heterogeneous systems consisting of an aqueous phase containing Yb(OTf)3 and photoinitiator and an organic phase of acetonitrile containing monomer. The polymerization consists of two-steps; (i) photoin-duced adduct formation and (ii) subsequent propagation with the aid of Yb(OTf)3. The fast polymerization exhibited an explosive character so that the monomer conversion and molecular weights of the resulting polymers are very dependent on the experimental conditions, such as temperature, stirring manner and rate.",

keywords = "Aqueous photopolymerization, Cationic polymerization, Iodonium salt, Vinyl ether, Ytterbium triflate",

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AU - Kahveci, Muhammet U.

AU - Tasdelen, M. Atilla

AU - Cook, Wayne D.

AU - Yagci, Yusuf

PY - 2008/9/22

Y1 - 2008/9/22

N2 - Photoinitiated cationic polymerization of vinyl ethers in aqueous medium by using diphe-nyliodonium iodide (DPII) in the presence of a water-tolerant Lewis acid, ytterbium triflate (Yb(OTf)3), was reported. The polymerizations were performed in heterogeneous systems consisting of an aqueous phase containing Yb(OTf)3 and photoinitiator and an organic phase of acetonitrile containing monomer. The polymerization consists of two-steps; (i) photoin-duced adduct formation and (ii) subsequent propagation with the aid of Yb(OTf)3. The fast polymerization exhibited an explosive character so that the monomer conversion and molecular weights of the resulting polymers are very dependent on the experimental conditions, such as temperature, stirring manner and rate.

AB - Photoinitiated cationic polymerization of vinyl ethers in aqueous medium by using diphe-nyliodonium iodide (DPII) in the presence of a water-tolerant Lewis acid, ytterbium triflate (Yb(OTf)3), was reported. The polymerizations were performed in heterogeneous systems consisting of an aqueous phase containing Yb(OTf)3 and photoinitiator and an organic phase of acetonitrile containing monomer. The polymerization consists of two-steps; (i) photoin-duced adduct formation and (ii) subsequent propagation with the aid of Yb(OTf)3. The fast polymerization exhibited an explosive character so that the monomer conversion and molecular weights of the resulting polymers are very dependent on the experimental conditions, such as temperature, stirring manner and rate.

KW - Aqueous photopolymerization

KW - Cationic polymerization

KW - Iodonium salt

KW - Vinyl ether

KW - Ytterbium triflate

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Photoinitiated cationic polymerization of mono and divinyl ethers in aqueous medium using ytterbium triflate as lewis acid

Abstract

Keywords

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