Redox polymerization of N-isopropylacrylamide by using hydroxylated soya oil polymer

Abdulkadir ALLI; Timur ŞANAL; Baki HAZER

Makale detayları

Redox polymerization of N-isopropylacrylamide by using hydroxylated soya oil polymer

Yazarlar:

Abdulkadir ALLI | Timur ŞANAL | Baki HAZER

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2015 Vol.39 Issue 2, pp.382-394

Belge Tipi:

Makale

Yayın Tarihi:

8/2015

Belge Dili:

Türkçe

Document ID (Org No.):

2000726937

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

Water soluble hydroxylated soya oil polymer was used in the redox  polymerization of N-isopropylacrylamide (NIPAM) in order to obtain  water-based hydroxylated-soya oil polymer-g-PNIPAM graft copolymer. For this  purpose, soya oil was exposed to air under sunlight to obtain autoxidized  soya oil polymer (PSy-ox). PSy-ox was allowed to react with diethanol amine  to obtain hydroxylated soya oil polymer (hydroxylated-PSy). An ammonium  persulfate with hydroxylated-PSy redox initiating system was used in the  polymerization of NIPAM in order to obtain thermo-responsive  hydroxylated-PSy-g-PNIPAM water-based graft copolymers. The graft  copolymers were characterized using proton nuclear magnetic resonance,  Fourier transform infrared~spectroscopy, gel permeation chromatography,  thermal gravimetric analysis, and differential scanning calorimetry  techniques. The effects of hydroxylated-PSy on the thermal response rate of  PNIPAM and the percentage of transmittance in the water of graft copolymers  were studied by means of observing UV transmittance behaviors in response to  changing temperature. This showed the temperature-responsive property, and  exhibited a volume phase transition from 22 °C to 29 °C,  while that of PNIPAM was 32 °C.

 

Water soluble hydroxylated soya oil polymer was used in the redox  polymerization of N-isopropylacrylamide (NIPAM) in order to obtain  water-based hydroxylated-soya oil polymer-g-PNIPAM graft copolymer. For this  purpose, soya oil was exposed to air under sunlight to obtain autoxidized  soya oil polymer (PSy-ox). PSy-ox was allowed to react with diethanol amine  to obtain hydroxylated soya oil polymer (hydroxylated-PSy). An ammonium  persulfate with hydroxylated-PSy redox initiating system was used in the  polymerization of NIPAM in order to obtain thermo-responsive  hydroxylated-PSy-g-PNIPAM water-based graft copolymers. The graft  copolymers were characterized using proton nuclear magnetic resonance,  Fourier transform infrared~spectroscopy, gel permeation chromatography,  thermal gravimetric analysis, and differential scanning calorimetry  techniques. The effects of hydroxylated-PSy on the thermal response rate of  PNIPAM and the percentage of transmittance in the water of graft copolymers  were studied by means of observing UV transmittance behaviors in response to  changing temperature. This showed the temperature-responsive property, and  exhibited a volume phase transition from 22 °C to 29 °C,  while that of PNIPAM was 32 °C.

Makale detayları

Redox polymerization of N-isopropylacrylamide by using hydroxylated soya oil polymer

Yazarlar: Abdulkadir ALLI | Timur ŞANAL | Baki HAZER

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2015 Vol.39 Issue 2, pp.382-394

Belge Tipi: Makale

Yayın Tarihi: 8/2015

Belge Dili: Türkçe

Document ID (Org No.): 2000726937

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Abdulkadir ALLI | Timur ŞANAL | Baki HAZER

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2015 Vol.39 Issue 2, pp.382-394

Belge Tipi:

Makale

Yayın Tarihi:

8/2015

Belge Dili:

Türkçe

Document ID (Org No.):

2000726937

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527