Synthesis of PMMA-PTHF-PMMA and PMMA-PTHF-PST linear and star block copolymers

Combination of cationic, redox free radical, and thermal free radical polymerizations was performed to obtain linear and star polytetramethylene oxide (poly-THF)-polymethyl methacrylate (PMMA)/polystyrene (PSt) multiblock copolymers. Cationic polymerization of THF was initiated by the mixture of AgSbF6 and bis(4,4' bromo-methyl benzoyl) peroxide (BBP) or bis (3,5,3',5' dibromom-ethyl benzoyl) peroxide (BDBP) at 20°C to obtain linear and star poly-THF initiators with MW varying from 7,500 to 59,000 Da. Poly-THF samples with hydroxyl ends were used in the methyl methacrylate (MMA) polymerization in the presence of Ce(IV) salt at 40°C to obtain poly(THF-b-MMA) block copolymers containing the peroxide group in the middle. Poly(MMA-b-THF) linear and star block copolymers having the peroxide group in the chain were used in the polymerization of methyl methacrylate (MMA) and styrene (St) at 80°C to obtain PMMA-b-PTHF-b-PMMA and PMMA-b-PTHF-PSt linear and star multiblock copolymers. Polymers obtained were characterizated by GPC, FT-IR, DSC, TGA, 1H-NMR, and 13C-NMR techniques and the fractional precipitation method. © 2004 Wiley Periodicals, Inc.

Dergi Adı Journal of Applied Polymer Science
Dergi Cilt Bilgisi 93
Dergi Sayısı 1
Sayfalar 219 - 226
Yayın Yılı 2004
Eser Adı
[dc.title]
Synthesis of PMMA-PTHF-PMMA and PMMA-PTHF-PST linear and star block copolymers
Yazar
[dc.contributor.author]
Macit, Hülya
Yazar
[dc.contributor.author]
Hazer, Baki
Yayın Yılı
[dc.date.issued]
2004
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
Combination of cationic, redox free radical, and thermal free radical polymerizations was performed to obtain linear and star polytetramethylene oxide (poly-THF)-polymethyl methacrylate (PMMA)/polystyrene (PSt) multiblock copolymers. Cationic polymerization of THF was initiated by the mixture of AgSbF6 and bis(4,4' bromo-methyl benzoyl) peroxide (BBP) or bis (3,5,3',5' dibromom-ethyl benzoyl) peroxide (BDBP) at 20°C to obtain linear and star poly-THF initiators with MW varying from 7,500 to 59,000 Da. Poly-THF samples with hydroxyl ends were used in the methyl methacrylate (MMA) polymerization in the presence of Ce(IV) salt at 40°C to obtain poly(THF-b-MMA) block copolymers containing the peroxide group in the middle. Poly(MMA-b-THF) linear and star block copolymers having the peroxide group in the chain were used in the polymerization of methyl methacrylate (MMA) and styrene (St) at 80°C to obtain PMMA-b-PTHF-b-PMMA and PMMA-b-PTHF-PSt linear and star multiblock copolymers. Polymers obtained were characterizated by GPC, FT-IR, DSC, TGA, 1H-NMR, and 13C-NMR techniques and the fractional precipitation method. © 2004 Wiley Periodicals, Inc.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Cationic polymerization
Konu Başlıkları
[dc.subject]
Polyethers
Konu Başlıkları
[dc.subject]
Polystyrene
Konu Başlıkları
[dc.subject]
Redox polymers
Konu Başlıkları
[dc.subject]
Star polymers
Künye
[dc.identifier.citation]
Macit, H. ve Hazer, B. (2004). Synthesis of pmma-pthf-pmma and pmma-pthf-pst linear and star block copolymers. Journal of Applied Polymer Science, 93(1), 219-226. doi:10.1002/app.20455
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
0021-8995
İlk Sayfa Sayısı
[dc.identifier.startpage]
219
Son Sayfa Sayısı
[dc.identifier.endpage]
226
Dergi Adı
[dc.relation.journal]
Journal of Applied Polymer Science
Dergi Sayısı
[dc.identifier.issue]
1
Dergi Cilt Bilgisi
[dc.identifier.volume]
93
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1002/app.20455
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/7775
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
46
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
09 Şubat 2024 11:41
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peroxide copolymers obtain linear methacrylate polymerization benzoyl) multiblock methyl radical having Poly(MMA-b-THF) middle presence Ce(IV) containing poly(THF-b-MMA) styrene Combination techniques Periodicals method precipitation fractional 13C-NMR 1H-NMR characterizated obtained Polymers PMMA-b-PTHF-PSt PMMA-b-PTHF-b-PMMA varying (PMMA)/polystyrene AgSbF6 mixture
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