Synthesis and characterization of poly(N-isopropyl acryl amide)-g-poly(LINOLEIC ACID)/poly(linolenic acid) graft copolymers

To diversify edible oil thermoresponsive polymer composites, polymeric linoleic acid peroxide (PLina) and polymeric linolenic acid peroxide (PLinl) were obtained by the autoxidation of linoleic acid (Lina) and linolenic acid (Linl), respectively. The autoxidation of Lina and Linl under air at room temperature rendered waxy soluble polymeric peroxide, having a soluble fraction in chloroform of more than 91 wt% and containing up to 1.0 wt% of peroxide. The soluble polymeric oil macro-peroxide was used to initiate the free radical polymerization of N-isopropylacrylamide, NIPAM, resulting in PLina-g-PNIPAM and PLinl-g-PNIPAM graft copolymers, respectively. The PNIPAM content of the graft copolymers was calculated using the elemental nitrogen analysis of graft copolymers. Thermal analysis, FTIR, 1H NMR, and SEM techniques were used in the characterization of the products. The hydrophobic effect of the fatty acid macro peroxides on the thermal response rate of the graft copolymers was investigated by means of swelling-deswelling behaviors in response to temperature change. They have a thermoresponsive character and exhibit a volume phase transition at approximately 27-30 °C, which is 1-4 °C lower than that of pure PNIPAM. A plastizer effect of PLina and PLinl in graft copolymers was observed, indicating a lower glass transition temperature than that of pure PNIPAM. © 2010 AOCS.

Dergi Adı JAOCS, Journal of the American Oil Chemists' Society
Dergi Cilt Bilgisi 88
Dergi Sayısı 2
Sayfalar 255 - 263
Yayın Yılı 2011
Eser Adı
[dc.title]
Synthesis and characterization of poly(N-isopropyl acryl amide)-g-poly(LINOLEIC ACID)/poly(linolenic acid) graft copolymers
Yazar
[dc.contributor.author]
Allı, Abdulkadir
Yazar
[dc.contributor.author]
Hazer, Baki
Yayın Yılı
[dc.date.issued]
2011
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
To diversify edible oil thermoresponsive polymer composites, polymeric linoleic acid peroxide (PLina) and polymeric linolenic acid peroxide (PLinl) were obtained by the autoxidation of linoleic acid (Lina) and linolenic acid (Linl), respectively. The autoxidation of Lina and Linl under air at room temperature rendered waxy soluble polymeric peroxide, having a soluble fraction in chloroform of more than 91 wt% and containing up to 1.0 wt% of peroxide. The soluble polymeric oil macro-peroxide was used to initiate the free radical polymerization of N-isopropylacrylamide, NIPAM, resulting in PLina-g-PNIPAM and PLinl-g-PNIPAM graft copolymers, respectively. The PNIPAM content of the graft copolymers was calculated using the elemental nitrogen analysis of graft copolymers. Thermal analysis, FTIR, 1H NMR, and SEM techniques were used in the characterization of the products. The hydrophobic effect of the fatty acid macro peroxides on the thermal response rate of the graft copolymers was investigated by means of swelling-deswelling behaviors in response to temperature change. They have a thermoresponsive character and exhibit a volume phase transition at approximately 27-30 °C, which is 1-4 °C lower than that of pure PNIPAM. A plastizer effect of PLina and PLinl in graft copolymers was observed, indicating a lower glass transition temperature than that of pure PNIPAM. © 2010 AOCS.
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]
Autoxidation
Konu Başlıkları
[dc.subject]
Graft copolymer
Konu Başlıkları
[dc.subject]
Linoleic acid
Konu Başlıkları
[dc.subject]
Linolenic acid
Konu Başlıkları
[dc.subject]
N-isopropylacrylamide
Künye
[dc.identifier.citation]
Alli, A. ve Hazer, B. (2011). Synthesis and characterization of poly(N-isopropyl acryl amide)-g-poly(Linoleic acid)/poly(Linolenic acid) graft copolymers. Journal of the American Oil Chemists’ Society, 88(2), 255-263. doi:10.1007/s11746-010-1663-1
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
0003021X
Sponsor YAYINCI
[dc.description.sponsorship]
Fundamental Research Fund of Shandong University: 2008-70-01-01 108T423, 109T029
Sponsor YAYINCI
[dc.description.sponsorship]
Acknowledgments This work was financially supported by TUBI-TAK (grant nos. 109T029 and 108T423), Zonguldak Karaelmas University Research Fund (grant no. 2008-70-01-01), and Düzce University Research Fund.
İlk Sayfa Sayısı
[dc.identifier.startpage]
255
Son Sayfa Sayısı
[dc.identifier.endpage]
263
Dergi Adı
[dc.relation.journal]
JAOCS, Journal of the American Oil Chemists' Society
Dergi Sayısı
[dc.identifier.issue]
2
Dergi Cilt Bilgisi
[dc.identifier.volume]
88
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1007/s11746-010-1663-1
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/7741
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
23
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
09 Şubat 2024 06:02
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Tıklayınız
copolymers polymeric peroxide soluble temperature PNIPAM transition response effect thermoresponsive autoxidation linoleic linolenic respectively analysis thermal hydrophobic investigated peroxides swelling-deswelling behaviors change products plastizer indicating observed character techniques approximately volume exhibit characterization PLina-g-PNIPAM chloroform fraction
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