γ-Ray induced graft copolymerization of methyl methacrylate onto poly(ß-hydroxynonanoate)

Copolymers of poly(3-hydroxy-nonanoate), PHN, with methyl methacrylate, MMA, were prepared using 60Co-gamma irradiator. The bulk solutions of PHN in MMA were prepared at different PHN feed concentration and they were irradiated to 8.5 kGy at room temperature. Polymer fractions obtained by solvent-nonsolvent fractional precipitation were carefully characterized using gel permeation chromatography (GPC), nuclear magnetic resonance spectroscopy (NMR), and thermal gravimetric analysis (TGA) techniques. High copolymerization yield was observed and the copolymer compositions obtained from the TGA measurements were consistent with the NMR results. PHN contents of the copolymer samples changed from 5 to 35 wt.-%. The strain at break and tensile strength values of copolymers were between the values of their respective homopolymers. It was observed that pure copolymer samples showed up to 13% strain at break.

Dergi Adı Polymer Bulletin
Dergi Cilt Bilgisi 41
Dergi Sayısı 1
Sayfalar 53 - 60
Yayın Yılı 1998
Eser Adı
[dc.title]
γ-Ray induced graft copolymerization of methyl methacrylate onto poly(ß-hydroxynonanoate)
Yazar
[dc.contributor.author]
Eroğlu, Mehmet S.
Yazar
[dc.contributor.author]
Çaykara, Tuncer
Yazar
[dc.contributor.author]
Hazer, Baki
Yayın Yılı
[dc.date.issued]
1998
Yayıncı
[dc.publisher]
Springer Verlag
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
Copolymers of poly(3-hydroxy-nonanoate), PHN, with methyl methacrylate, MMA, were prepared using 60Co-gamma irradiator. The bulk solutions of PHN in MMA were prepared at different PHN feed concentration and they were irradiated to 8.5 kGy at room temperature. Polymer fractions obtained by solvent-nonsolvent fractional precipitation were carefully characterized using gel permeation chromatography (GPC), nuclear magnetic resonance spectroscopy (NMR), and thermal gravimetric analysis (TGA) techniques. High copolymerization yield was observed and the copolymer compositions obtained from the TGA measurements were consistent with the NMR results. PHN contents of the copolymer samples changed from 5 to 35 wt.-%. The strain at break and tensile strength values of copolymers were between the values of their respective homopolymers. It was observed that pure copolymer samples showed up to 13% strain at break.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Künye
[dc.identifier.citation]
Eroğlu, M. S., Çaykara, T. ve Hazer, B. (1998). γ-Ray induced graft copolymerization of methyl methacrylate onto poly(β-hydroxynonanoate). Polymer Bulletin, 41(1), 53–60. doi:10.1007/s002890050332
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
0170-0839
İlk Sayfa Sayısı
[dc.identifier.startpage]
53
Son Sayfa Sayısı
[dc.identifier.endpage]
60
Dergi Adı
[dc.relation.journal]
Polymer Bulletin
Dergi Sayısı
[dc.identifier.issue]
1
Dergi Cilt Bilgisi
[dc.identifier.volume]
41
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1007/s002890050332
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/3810
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copolymer strain values obtained samples observed prepared contents results copolymerization consistent compositions measurements Copolymers tensile changed homopolymers showed respective between copolymers strength techniques magnetic different irradiated concentration temperature solutions irradiator 60Co-gamma methacrylate methyl poly(3-hydroxy-nonanoate) Polymer
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