ESR study of poly β-alanine  and its derivatives

Efkan ÇATIKER; Olgun GÜVEN; Özdemir ÖZARSLAN; Mircea CHİPARA

Article Details

ESR study of poly β-alanine and its derivatives

Authors:

Efkan ÇATIKER | Olgun GÜVEN | Özdemir ÖZARSLAN | Mircea CHİPARA

Publisher:

Hacettepe University

Journal:

Hacettepe Journal of Biology and Chemistry 2014 Vol.42 Issue 1, pp.49-61

Document Type:

Article

Publication Date:

2/2014

Document Language:

English

Document ID (Org No.):

2000449230

Frequency:

Quarterly

eISSN:

2687-475X

pISSN:

2687-475X

Abstract:

 

Gamma radiation-induced radicals in poly β-alanine , poly α-methyl-β-alanine  and poly β-methyl-β-alanine  have been investigated by Electron Spin Resonance Spectrometry technique. ESR spectra of polymers irradiated in nitrogen and air have been simulated by curve fitting software  Winsim2002 . The type of radicals generated, their relative abundances, conversion into other radicalic species and their room temperature stability were evaluated. At least two types of radicals have been detected for each polymer. Most stable radicals have been obtained in the case of poly α-methyl-β-alanine .

 

P oli b-alanin , poli a-metil-b-alanin  ve poli b-metil-b-alanin ’in gama ışıması muamelesi ile oluşan radikalleri Elektron Spin Rezonans tekniği ile incelendi. Azot ve hava ortamlarında ışınlanan polimerlerin ESR spektrumları eğri simülasyon yazılımı  Winsim2002  kullanılarak simülasyonuları yapıldı. Oluşan radikal türleri, bağıl miktarları, diğer radikalik türlere dönüşümleri ve oda sıcaklığındaki kararlılıkları incelendi. Her polimer için en az iki tür radikal belirlendi. En kararlı radikallerin poli a-metil-b-alanin ’den elde edildiği tesbit edildi.

Article Details

ESR study of poly β-alanine and its derivatives

Authors: Efkan ÇATIKER | Olgun GÜVEN | Özdemir ÖZARSLAN | Mircea CHİPARA

Publisher: Hacettepe University

Journal: Hacettepe Journal of Biology and Chemistry 2014 Vol.42 Issue 1, pp.49-61

Document Type: Article

Publication Date: 2/2014

Document Language: English

Document ID (Org No.): 2000449230

Frequency: Quarterly

eISSN: 2687-475X

pISSN: 2687-475X

Issues

Authors:

Efkan ÇATIKER | Olgun GÜVEN | Özdemir ÖZARSLAN | Mircea CHİPARA

Publisher:

Hacettepe University

Journal:

Hacettepe Journal of Biology and Chemistry 2014 Vol.42 Issue 1, pp.49-61

Document Type:

Article

Publication Date:

2/2014

Document Language:

English

Document ID (Org No.):

2000449230

Frequency:

Quarterly

eISSN:

2687-475X

pISSN:

2687-475X