Thermal and IR studies on copper doped polyvinyl alcohol

Bulletin of materials science

J L Rao²  Ch Linga Raju³  B C V Reddy²  K Veera Brahmam¹ 

[1] Advanced Systems Laboratory, Kanchanbagh, Hyderabad 500 058, India$$Advanced Systems Laboratory, Kanchanbagh, Hyderabad 500 058, IndiaAdvanced Systems Laboratory, Kanchanbagh, Hyderabad 500 058, India$$;Department of Physics, S.V. University, Tirupati 517 502, India$$Department of Physics, S.V. University, Tirupati 517 502, IndiaDepartment of Physics, S.V. University, Tirupati 517 502, India$$;Department of Physics, A.N. University, Guntur 522 510, India$$Department of Physics, A.N. University, Guntur 522 510, IndiaDepartment of Physics, A.N. University, Guntur 522 510, India$$

关键词: Polyvinyl alcohol;    differential scanning calorimetry;    thermogravimetric analysis;    Fourier transform infrared spectroscopy (FTIR).;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

5 mol% PVA : ð‘�? mol% Cu²⁺ polymer films were prepared by casting process. Thermal transitions and thermal degradation of samples with respect to copper concentration were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), respectively. Increase in glass transition temperature as a function of copper concentration shows a strong branching and steric effects in copper doped PVA complexes. Thermal degradation of films to an extent of 4â€�??5% was found with an increase in copper content. FTIR spectrum of PVA doped Cu²⁺ ions indicate the presence of Oâ€�?�H, Câ€�?�H, C=C and Câ€�?�O groups.

【 授权许可】

Unknown