Synthesis and properties of chitosan-modified poly(vinyl butyrate)

Modification of chitosan by grafting of vinyl butyrate was carried out in homogeneous phase using potassium persulfate as redox initator and 1.5% acetic acid as solvent. The percent grafting and grafting efficiency were analysed and the high grafting efficiency up to 94% was observed. The effects of reaction variables such as monomer concentration, initiator concentration, temperature and reaction time were investigated. It was observed that the solubility of chitosan was markedly reduced after grafting with vinyl butyrate. The grafted product is insoluble in common organic solvents as well in dilute organic and inorganic acids. Characterization of the graft copolymers were carried out by using Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC) and Scanning Electron Microscopy (SEM) technics. Characteristic signal of carbonyl group was observed at 1,731 cm-1 which belongs to the poly vinyl butyrate segments in the graft copolymer. The melting transition of the chitosan main chain in the copolymer shifted to 124°C from its original value 101°C. In addition to these, we have also studied topology of the graft copolymer and the SEM micrograph showed continuous homogenous matrix which means there is no phase separation. © Springer Science+Business Media B.V. 2007.

Dergi Adı Journal of Polymer Research
Dergi Cilt Bilgisi 14
Dergi Sayısı 3
Sayfalar 215 - 221
Yayın Yılı 2007
Eser Adı
[dc.title]
Synthesis and properties of chitosan-modified poly(vinyl butyrate)
Yazar
[dc.contributor.author]
Akgün, Sibel
Yazar
[dc.contributor.author]
Ekici, Gülsüm
Yazar
[dc.contributor.author]
Mutlu, Nilüfer
Yazar
[dc.contributor.author]
Beşirli, Necati
Yazar
[dc.contributor.author]
Hazer, Baki
Yayın Yılı
[dc.date.issued]
2007
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
Modification of chitosan by grafting of vinyl butyrate was carried out in homogeneous phase using potassium persulfate as redox initator and 1.5% acetic acid as solvent. The percent grafting and grafting efficiency were analysed and the high grafting efficiency up to 94% was observed. The effects of reaction variables such as monomer concentration, initiator concentration, temperature and reaction time were investigated. It was observed that the solubility of chitosan was markedly reduced after grafting with vinyl butyrate. The grafted product is insoluble in common organic solvents as well in dilute organic and inorganic acids. Characterization of the graft copolymers were carried out by using Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC) and Scanning Electron Microscopy (SEM) technics. Characteristic signal of carbonyl group was observed at 1,731 cm-1 which belongs to the poly vinyl butyrate segments in the graft copolymer. The melting transition of the chitosan main chain in the copolymer shifted to 124°C from its original value 101°C. In addition to these, we have also studied topology of the graft copolymer and the SEM micrograph showed continuous homogenous matrix which means there is no phase separation. © Springer Science+Business Media B.V. 2007.
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]
Chitosan
Konu Başlıkları
[dc.subject]
Graft copolymer
Konu Başlıkları
[dc.subject]
Vinyl butyrate
Künye
[dc.identifier.citation]
Akgün, S., Ekici, G., Mutlu, N., Beşirli, N. ve Hazer, B. (2007). Synthesis and properties of chitosan-modified poly(Vinyl butyrate). Journal of Polymer Research, 14(3), 215-221. doi:10.1007/s10965-007-9100-3
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
1022-9760
Sponsor YAYINCI
[dc.description.sponsorship]
2003/102
Sponsor YAYINCI
[dc.description.sponsorship]
Acknowledgment The authors gratefully acknowledge the financial support provided by the Uludag University Scientific Research Fund through Project 2003/102.
İlk Sayfa Sayısı
[dc.identifier.startpage]
215
Son Sayfa Sayısı
[dc.identifier.endpage]
221
Dergi Adı
[dc.relation.journal]
Journal of Polymer Research
Dergi Sayısı
[dc.identifier.issue]
3
Dergi Cilt Bilgisi
[dc.identifier.volume]
14
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1007/s10965-007-9100-3
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/7755
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
29
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
14 Şubat 2024 05:28
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Tıklayınız
grafting copolymer observed chitosan butyrate Scanning carried efficiency organic concentration reaction shifted transition 124°C Modification melting segments belongs carbonyl signal original micrograph 101°C matrix Science+Business Springer separation homogenous continuous showed technics topology studied addition Characteristic
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