Photoresponsive poly(methyl methacrylate)2-(polystyrene) 2 miktoarm star copolymer containing an azobenzene moiety at the core

Tuba Erdogan; Eda Gungor; Hakan Durmaz; Gurkan Hizal; Umit Tunca

doi:10.1002/pola.21253

Photoresponsive poly(methyl methacrylate)₂-(polystyrene) ₂ miktoarm star copolymer containing an azobenzene moiety at the core

Tuba Erdogan
, Eda Gungor
, Hakan Durmaz
, Gurkan Hizal^*
, Umit Tunca

^*Bu çalışma için yazışmadan sorumlu yazar

Kimya Bölümü

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

43 Atıf (Scopus)

Özet

We prepared a novel miktoarm star copolymer with an azobenzene unit at the core via combination of atom transfer radical polymerization (ATRP) and nitroxide-mediated free radical polymerization (NMP) routes. For this purpose, first, mikto-functional initiator, 3, with tertiary bromide (for ATRP) and 2,2,6,6-tetramethylpiperidin-1-yloxy (TEMPO) (for NMP) functionalities and an azobenzene moiety at the core was synthesized. The initiator 3 thus obtained was used in the subsequent living radical polymerization routes such as ATRP of MMA and NMP of St, respectively, to give A₂B₂ type miktoarm star copolymer, (PMMA)₂-(PSt)₂ with an azobenzene unit at the core with controlled molecular weight and low polydispersity (M _w/M_n < 1.15). The photoresponsive properties of 3 and (PMMA)₂-(PSt)₂ miktoarm star copolymer were investigated.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	1396-1403
Sayfa sayısı	8
Dergi	Journal of Polymer Science, Part A: Polymer Chemistry
Hacim	44
Basın numarası	4
DOI'lar	https://doi.org/10.1002/pola.21253
Yayın durumu	Yayınlandı - 15 Şub 2006

Belgeye Erişim

10.1002/pola.21253

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Photoresponsive poly(methyl methacrylate)2-(polystyrene) 2 miktoarm star copolymer containing an azobenzene moiety at the core",

abstract = "We prepared a novel miktoarm star copolymer with an azobenzene unit at the core via combination of atom transfer radical polymerization (ATRP) and nitroxide-mediated free radical polymerization (NMP) routes. For this purpose, first, mikto-functional initiator, 3, with tertiary bromide (for ATRP) and 2,2,6,6-tetramethylpiperidin-1-yloxy (TEMPO) (for NMP) functionalities and an azobenzene moiety at the core was synthesized. The initiator 3 thus obtained was used in the subsequent living radical polymerization routes such as ATRP of MMA and NMP of St, respectively, to give A2B2 type miktoarm star copolymer, (PMMA)2-(PSt)2 with an azobenzene unit at the core with controlled molecular weight and low polydispersity (M w/Mn < 1.15). The photoresponsive properties of 3 and (PMMA)2-(PSt)2 miktoarm star copolymer were investigated.",

keywords = "Atom transfer radical polymerization, Azobenzene, Cis- and trans-isomerization, Miktoarm star polymer, Nitroxide-mediated free radical polymerization",

author = "Tuba Erdogan and Eda Gungor and Hakan Durmaz and Gurkan Hizal and Umit Tunca",

year = "2006",

month = feb,

day = "15",

doi = "10.1002/pola.21253",

language = "English",

volume = "44",

pages = "1396--1403",

journal = "Journal of Polymer Science, Part A: Polymer Chemistry",

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publisher = "John Wiley \& Sons Inc.",

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TY - JOUR

T1 - Photoresponsive poly(methyl methacrylate)2-(polystyrene) 2 miktoarm star copolymer containing an azobenzene moiety at the core

AU - Erdogan, Tuba

AU - Gungor, Eda

AU - Durmaz, Hakan

AU - Hizal, Gurkan

AU - Tunca, Umit

PY - 2006/2/15

Y1 - 2006/2/15

N2 - We prepared a novel miktoarm star copolymer with an azobenzene unit at the core via combination of atom transfer radical polymerization (ATRP) and nitroxide-mediated free radical polymerization (NMP) routes. For this purpose, first, mikto-functional initiator, 3, with tertiary bromide (for ATRP) and 2,2,6,6-tetramethylpiperidin-1-yloxy (TEMPO) (for NMP) functionalities and an azobenzene moiety at the core was synthesized. The initiator 3 thus obtained was used in the subsequent living radical polymerization routes such as ATRP of MMA and NMP of St, respectively, to give A2B2 type miktoarm star copolymer, (PMMA)2-(PSt)2 with an azobenzene unit at the core with controlled molecular weight and low polydispersity (M w/Mn < 1.15). The photoresponsive properties of 3 and (PMMA)2-(PSt)2 miktoarm star copolymer were investigated.

AB - We prepared a novel miktoarm star copolymer with an azobenzene unit at the core via combination of atom transfer radical polymerization (ATRP) and nitroxide-mediated free radical polymerization (NMP) routes. For this purpose, first, mikto-functional initiator, 3, with tertiary bromide (for ATRP) and 2,2,6,6-tetramethylpiperidin-1-yloxy (TEMPO) (for NMP) functionalities and an azobenzene moiety at the core was synthesized. The initiator 3 thus obtained was used in the subsequent living radical polymerization routes such as ATRP of MMA and NMP of St, respectively, to give A2B2 type miktoarm star copolymer, (PMMA)2-(PSt)2 with an azobenzene unit at the core with controlled molecular weight and low polydispersity (M w/Mn < 1.15). The photoresponsive properties of 3 and (PMMA)2-(PSt)2 miktoarm star copolymer were investigated.

KW - Atom transfer radical polymerization

KW - Azobenzene

KW - Cis- and trans-isomerization

KW - Miktoarm star polymer

KW - Nitroxide-mediated free radical polymerization

UR - https://www.scopus.com/pages/publications/33644607884

U2 - 10.1002/pola.21253

DO - 10.1002/pola.21253

M3 - Article

AN - SCOPUS:33644607884

SN - 0887-624X

VL - 44

SP - 1396

EP - 1403

JO - Journal of Polymer Science, Part A: Polymer Chemistry

JF - Journal of Polymer Science, Part A: Polymer Chemistry

IS - 4