Directly and Indirectly Acting Photoinitiating Systems for Ring-Opening Polymerization of ϵ-Caprolactone

Semira Bener; Gorkem Yilmaz; Yusuf Yagci

doi:10.1002/cptc.202100118

Directly and Indirectly Acting Photoinitiating Systems for Ring-Opening Polymerization of ϵ-Caprolactone

Semira Bener
, Gorkem Yilmaz
, Yusuf Yagci^*

^*Bu çalışma için yazışmadan sorumlu yazar

Kimya Bölümü

Istanbul Technical University
Center of Excellence for Advanced Materials Research

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

9 Atıf (Scopus)

Özet

Directly and indirectly acting photoinitiating systems for cationic ring opening polymerization (ROP) of ϵ-caprolactone (ϵ-CL) by using diphenyl iodonium salt (DPI) in the presence of benzyl alcohol were studied and mechanistic details were evaluated. In the direct system, the polymerization is initiated by a Brønsted acid formed upon UV irradiation of DPI. Polymerizations by indirectly acting photoinitiating systems proceeding via electron transfer reactions of photochemically formed electron donor radicals or excited states of polynuclear aromatic compounds with DPI were investigated. It was demonstrated that polymerizations proceed in a controlled manner by an activated monomer (AM) mechanism. Applicability of the photoinitiation to the other lactone monomers was validated on the example of δ- valerolactone (δ-VL).

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	1089-1093
Sayfa sayısı	5
Dergi	ChemPhotoChem
Hacim	5
Basın numarası	12
DOI'lar	https://doi.org/10.1002/cptc.202100118
Yayın durumu	Yayınlandı - Ara 2021

Bibliyografik not

Publisher Copyright:
© 2021 Wiley-VCH GmbH

Finansman

The authors would like to thank Istanbul Technical University Research Fund for financial support. S.B. would like to thank Council of Higher Education (YOK) and Scientific and Technological Research Council of Turkey (TUBITAK) for financial support.

Finansörler
Istanbul Technical University Research Fund
TUBITAK
YOK
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu
Yükseköğretim Kurulu

Belgeye Erişim

10.1002/cptc.202100118

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Directly and Indirectly Acting Photoinitiating Systems for Ring-Opening Polymerization of ϵ-Caprolactone",

abstract = "Directly and indirectly acting photoinitiating systems for cationic ring opening polymerization (ROP) of ϵ-caprolactone (ϵ-CL) by using diphenyl iodonium salt (DPI) in the presence of benzyl alcohol were studied and mechanistic details were evaluated. In the direct system, the polymerization is initiated by a Br{\o}nsted acid formed upon UV irradiation of DPI. Polymerizations by indirectly acting photoinitiating systems proceeding via electron transfer reactions of photochemically formed electron donor radicals or excited states of polynuclear aromatic compounds with DPI were investigated. It was demonstrated that polymerizations proceed in a controlled manner by an activated monomer (AM) mechanism. Applicability of the photoinitiation to the other lactone monomers was validated on the example of δ- valerolactone (δ-VL).",

keywords = "activated monomer mechanism, caprolactone, cationic polymerization, polymerization, ring-opening polymerization",

author = "Semira Bener and Gorkem Yilmaz and Yusuf Yagci",

note = "Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

year = "2021",

month = dec,

doi = "10.1002/cptc.202100118",

language = "English",

volume = "5",

pages = "1089--1093",

journal = "ChemPhotoChem",

issn = "2367-0932",

publisher = "Wiley-VCH Verlag",

number = "12",

}

TY - JOUR

T1 - Directly and Indirectly Acting Photoinitiating Systems for Ring-Opening Polymerization of ϵ-Caprolactone

AU - Bener, Semira

AU - Yilmaz, Gorkem

AU - Yagci, Yusuf

PY - 2021/12

Y1 - 2021/12

N2 - Directly and indirectly acting photoinitiating systems for cationic ring opening polymerization (ROP) of ϵ-caprolactone (ϵ-CL) by using diphenyl iodonium salt (DPI) in the presence of benzyl alcohol were studied and mechanistic details were evaluated. In the direct system, the polymerization is initiated by a Brønsted acid formed upon UV irradiation of DPI. Polymerizations by indirectly acting photoinitiating systems proceeding via electron transfer reactions of photochemically formed electron donor radicals or excited states of polynuclear aromatic compounds with DPI were investigated. It was demonstrated that polymerizations proceed in a controlled manner by an activated monomer (AM) mechanism. Applicability of the photoinitiation to the other lactone monomers was validated on the example of δ- valerolactone (δ-VL).

AB - Directly and indirectly acting photoinitiating systems for cationic ring opening polymerization (ROP) of ϵ-caprolactone (ϵ-CL) by using diphenyl iodonium salt (DPI) in the presence of benzyl alcohol were studied and mechanistic details were evaluated. In the direct system, the polymerization is initiated by a Brønsted acid formed upon UV irradiation of DPI. Polymerizations by indirectly acting photoinitiating systems proceeding via electron transfer reactions of photochemically formed electron donor radicals or excited states of polynuclear aromatic compounds with DPI were investigated. It was demonstrated that polymerizations proceed in a controlled manner by an activated monomer (AM) mechanism. Applicability of the photoinitiation to the other lactone monomers was validated on the example of δ- valerolactone (δ-VL).

KW - activated monomer mechanism

KW - caprolactone

KW - cationic polymerization

KW - polymerization

KW - ring-opening polymerization

UR - https://www.scopus.com/pages/publications/85114751973

U2 - 10.1002/cptc.202100118

DO - 10.1002/cptc.202100118

M3 - Article

AN - SCOPUS:85114751973

SN - 2367-0932

VL - 5

SP - 1089

EP - 1093

JO - ChemPhotoChem

JF - ChemPhotoChem

IS - 12

ER -

Directly and Indirectly Acting Photoinitiating Systems for Ring-Opening Polymerization of ϵ-Caprolactone

Özet

Bibliyografik not

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

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