A study on polymer blend electrolyte based on PVA/PVP with proton salt
A study on polymer blend electrolyte based on PVA/PVP with proton salt
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基于PVA/PVP与质子盐的聚合物共混电解质的研究
DOI：
10.1007/s11581-012-0838-1
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发表时间：
2014
期刊：
影响因子：
3.2
通讯作者：
S. Asath Bahadur
中科院分区：
文献类型：
--
作者：
N. Rajeswari;S. Selvasekarapandian;C. Sanjeeviraja;J. Kawamura;S. Asath Bahadur
采用不同分子量百分比（wt.%）的聚乙烯醇（PVA）和聚乙烯吡咯烷酮（PVP）聚合物，制备了一种可生物降解的固体聚合物共混电解质的乙酸铵，其结构，热，振动，和电性能进行了评估。以水为溶剂，采用溶液浇铸法制备了聚合物共混电解质。X-射线衍射分析表明，醋酸铵的引入导致样品的结晶度降低。傅里叶变换红外光谱和激光拉曼光谱研究证实了聚合物和盐之间的复合物的形成。差示扫描量热分析表明，随着醋酸铵浓度的增加，聚合物共混电解质的热稳定性和玻璃化转变温度降低。通过交流阻抗谱分析发现了聚合物电解质的离子导电性。对于50 PVA/50 PVP/30 wt.%的组合物，观察到8.12 × 10 - 5Scm-1的最大电导率的CH 3COONH 4。
A biodegradable solid polymer blend electrolyte was prepared by using polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP) polymers with different molecular weight percentages (wt.%) of ammonium acetate, and its structural, thermal, vibrational, and electrical properties were evaluated. The polymer blend electrolyte is prepared using solution casting technique, with water as a solvent. X-ray diffraction shows that the incorporation of ammonium acetate into the polymeric matrix causes decrease in the crystallinity degree of the samples. The Fourier transform infrared spectroscopy and laser Raman studies confirm the complex formation between the polymer and salt. Differential scanning calorimerty shows that the thermal stability of the polymer blend electrolyte and the glass transition temperature decreased as the concentration of ammonium acetate increased. The ionic conductivity of the prepared polymer electrolyte was found by AC impedance spectroscopic analysis. A maximum conductivity of 8.12 × 10−5Scm−1was observed for the composition of 50 PVA/50 PVP/30 wt.% of CH3COONH4.