Synthesis and characterization of the poly(ethylene glycol) grafted unsaturated microbial polyesters

Pseudomonas oleovorans was grown with either 10-undecenoic acid alone or the equimolar mixture of octanoic acid and 10-undecenoic acid to obtain unsaturated poly(3- hydroxy alkanoates) (PHA)s; poly(3-hydroxy-10-undecenoate) (PHU) and poly(3-hydroxyoctanoate- co-3-hydroxy-10-undecenoate) (PHOU), respectively. The addition of bromine to olefinic double bond, by reacting the unsaturated PHA with bromine in homogeneous solution in dark, was readily carried out. The brominated PHA was reacted with polyethylene glycol (PEG) in the presence of a base to obtain PHA-g-PEG graft copolymers. The polymers were characterized by $^ 1H$ NMR and FTIR spectroscopy, gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).

Pseudomonas oleovorans was grown with either 10-undecenoic acid alone or the equimolar mixture of octanoic acid and 10-undecenoic acid to obtain unsaturated poly(3- hydroxy alkanoates) (PHA)s; poly(3-hydroxy-10-undecenoate) (PHU) and poly(3-hydroxyoctanoate- co-3-hydroxy-10-undecenoate) (PHOU), respectively. The addition of bromine to olefinic double bond, by reacting the unsaturated PHA with bromine in homogeneous solution in dark, was readily carried out. The brominated PHA was reacted with polyethylene glycol (PEG) in the presence of a base to obtain PHA-g-PEG graft copolymers. The polymers were characterized by $^ 1H$ NMR and FTIR spectroscopy, gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).

Dergi Adı Hacettepe Journal of Biology and Chemistry
Dergi Cilt Bilgisi 38
Dergi Sayısı 1
Sayfalar 9 - 17
Yayın Yılı 2010
Eser Adı
[dc.title]
Synthesis and characterization of the poly(ethylene glycol) grafted unsaturated microbial polyesters
Yazar
[dc.contributor.author]
Kılıçay, Ebru
Yazar
[dc.contributor.author]
Hazer, Baki
Yazar
[dc.contributor.author]
Çoban, Burak
Yazar
[dc.contributor.author]
Scholz, Carmen
Yayın Yılı
[dc.date.issued]
2010
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
Pseudomonas oleovorans was grown with either 10-undecenoic acid alone or the equimolar mixture of octanoic acid and 10-undecenoic acid to obtain unsaturated poly(3- hydroxy alkanoates) (PHA)s; poly(3-hydroxy-10-undecenoate) (PHU) and poly(3-hydroxyoctanoate- co-3-hydroxy-10-undecenoate) (PHOU), respectively. The addition of bromine to olefinic double bond, by reacting the unsaturated PHA with bromine in homogeneous solution in dark, was readily carried out. The brominated PHA was reacted with polyethylene glycol (PEG) in the presence of a base to obtain PHA-g-PEG graft copolymers. The polymers were characterized by $^ 1H$ NMR and FTIR spectroscopy, gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).
Özet
[dc.description.abstract]
Pseudomonas oleovorans was grown with either 10-undecenoic acid alone or the equimolar mixture of octanoic acid and 10-undecenoic acid to obtain unsaturated poly(3- hydroxy alkanoates) (PHA)s; poly(3-hydroxy-10-undecenoate) (PHU) and poly(3-hydroxyoctanoate- co-3-hydroxy-10-undecenoate) (PHOU), respectively. The addition of bromine to olefinic double bond, by reacting the unsaturated PHA with bromine in homogeneous solution in dark, was readily carried out. The brominated PHA was reacted with polyethylene glycol (PEG) in the presence of a base to obtain PHA-g-PEG graft copolymers. The polymers were characterized by $^ 1H$ NMR and FTIR spectroscopy, gel permeation chromatography (GPC), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).
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]
Biyoloji
Künye
[dc.identifier.citation]
Kılıçay, E., Hazer, B., Çoban, B. ve Scholz, C. (2010). Synthesis and characterization of the poly(Ethylene glycol) grafted unsaturated microbial polyesters. Hacettepe Journal of Biology and Chemistry, 38(1), 9-17.
Haklar
[dc.rights]
info:eu-repo/semantics/openAccess
ISSN
[dc.identifier.issn]
1303-5002
İlk Sayfa Sayısı
[dc.identifier.startpage]
9
Son Sayfa Sayısı
[dc.identifier.endpage]
17
Dergi Adı
[dc.relation.journal]
Hacettepe Journal of Biology and Chemistry
Dergi Sayısı
[dc.identifier.issue]
1
Dergi Cilt Bilgisi
[dc.identifier.volume]
38
Tek Biçim Adres
[dc.identifier.uri]
http://www.trdizin.gov.tr/publication/paper/detail/TVRBME1ETXdNQT09
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/433
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bromine unsaturated obtain 10-undecenoic glycol PHA-g-PEG polyethylene copolymers presence polymers characterized brominated spectroscopy permeation chromatography differential scanning calorimetry thermogravimetric reacted reacting either equimolar mixture octanoic poly(3- hydroxy alkanoates) (PHA)s poly(3-hydroxy-10-undecenoate) poly(3-hydroxyoctanoate- carried co-3-hydroxy-10-undecenoate) (PHOU) respectively
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