Synthesis of block copolymers by transformation of photosensitized cationic polymerization to stable free radical polymerization

Tuba Girgin Yildirim; Yeşim Hepuzer; Gürkan Hizal; Yusuf Yaǧci

doi:10.1016/S0032-3861(98)00633-8

Synthesis of block copolymers by transformation of photosensitized cationic polymerization to stable free radical polymerization

Tuba Girgin Yildirim
, Yeşim Hepuzer
, Gürkan Hizal
, Yusuf Yaǧci^*

^*Bu çalışma için yazışmadan sorumlu yazar

Kimya Bölümü

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

33 Atıf (Scopus)

Özet

Anthracene-photosensitized cationic polymerization of cyclohexene oxide at λ = 350 nm in conjunction with onium salts, namely N-ethoxy-2-methyl pyridinium hexafluorophosphate (EMP⁺PF₆ ^-) or diphenyliodonium hexafluorophosphate (Ph₂I⁺PF₆ ^-), in the presence of a stable radical, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO), yielded polymers with alkoxyamine terminal groups. These polymers were found to be efficient initiators for stable free radical polymerization (SFRP) of styrene. IR, ¹H-NMR spectral analysis and GPC studies of the obtained polymers show that block copolymers are readily formed as a result of combination of photosensitized cationic and stable free radical polymerization mechanisms.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	3885-3890
Sayfa sayısı	6
Dergi	Polymer
Hacim	40
Basın numarası	13
DOI'lar	https://doi.org/10.1016/S0032-3861(98)00633-8
Yayın durumu	Yayınlandı - Haz 1999

Finansman

Financial support from Istanbul Technical University Research Fund and Turkish State Planing Association (DPT) is gratefully acknowledged.

Finansörler
DPT
Turkish State Planing Association
Istanbul Teknik Üniversitesi

Belgeye Erişim

10.1016/S0032-3861(98)00633-8

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@article{a238fa32ee90417cadba4223e2d79bcd,

title = "Synthesis of block copolymers by transformation of photosensitized cationic polymerization to stable free radical polymerization",

abstract = "Anthracene-photosensitized cationic polymerization of cyclohexene oxide at λ = 350 nm in conjunction with onium salts, namely N-ethoxy-2-methyl pyridinium hexafluorophosphate (EMP+PF6 -) or diphenyliodonium hexafluorophosphate (Ph2I+PF6 -), in the presence of a stable radical, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO), yielded polymers with alkoxyamine terminal groups. These polymers were found to be efficient initiators for stable free radical polymerization (SFRP) of styrene. IR, 1H-NMR spectral analysis and GPC studies of the obtained polymers show that block copolymers are readily formed as a result of combination of photosensitized cationic and stable free radical polymerization mechanisms.",

keywords = "Photosensitized cationic polymerization, Stable free radical polymerization, Transformation reactions",

author = "Yildirim, \{Tuba Girgin\} and Ye{\c s}im Hepuzer and G{\"u}rkan Hizal and Yusuf Yaǧci",

year = "1999",

month = jun,

doi = "10.1016/S0032-3861(98)00633-8",

language = "English",

volume = "40",

pages = "3885--3890",

journal = "Polymer",

issn = "0032-3861",

number = "13",

}

TY - JOUR

T1 - Synthesis of block copolymers by transformation of photosensitized cationic polymerization to stable free radical polymerization

AU - Yildirim, Tuba Girgin

AU - Hepuzer, Yeşim

AU - Hizal, Gürkan

AU - Yaǧci, Yusuf

PY - 1999/6

Y1 - 1999/6

N2 - Anthracene-photosensitized cationic polymerization of cyclohexene oxide at λ = 350 nm in conjunction with onium salts, namely N-ethoxy-2-methyl pyridinium hexafluorophosphate (EMP+PF6 -) or diphenyliodonium hexafluorophosphate (Ph2I+PF6 -), in the presence of a stable radical, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO), yielded polymers with alkoxyamine terminal groups. These polymers were found to be efficient initiators for stable free radical polymerization (SFRP) of styrene. IR, 1H-NMR spectral analysis and GPC studies of the obtained polymers show that block copolymers are readily formed as a result of combination of photosensitized cationic and stable free radical polymerization mechanisms.

AB - Anthracene-photosensitized cationic polymerization of cyclohexene oxide at λ = 350 nm in conjunction with onium salts, namely N-ethoxy-2-methyl pyridinium hexafluorophosphate (EMP+PF6 -) or diphenyliodonium hexafluorophosphate (Ph2I+PF6 -), in the presence of a stable radical, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO), yielded polymers with alkoxyamine terminal groups. These polymers were found to be efficient initiators for stable free radical polymerization (SFRP) of styrene. IR, 1H-NMR spectral analysis and GPC studies of the obtained polymers show that block copolymers are readily formed as a result of combination of photosensitized cationic and stable free radical polymerization mechanisms.

KW - Photosensitized cationic polymerization

KW - Stable free radical polymerization

KW - Transformation reactions

UR - https://www.scopus.com/pages/publications/0033153046

U2 - 10.1016/S0032-3861(98)00633-8

DO - 10.1016/S0032-3861(98)00633-8

M3 - Article

AN - SCOPUS:0033153046

SN - 0032-3861

VL - 40

SP - 3885

EP - 3890

JO - Polymer

JF - Polymer

IS - 13

ER -

Synthesis of block copolymers by transformation of photosensitized cationic polymerization to stable free radical polymerization

Özet

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap