High-temperature electrical properties of silane cross-linked chitosan/poly(vinyl alcohol) membrane: thermal, mechanical and surface characterization

作者：Islam Atif^*; Yasin Tariq; Sabir Aneela; Khan Shahzad Maqsood; Sultan Mi**ah; Shafiq Muhammad; Khan Asad U; Jamil Tahir

来源：E-Polymers, 2015, 15(4): 255-261.

DOI：10.1515/epoly-2015-0048

• chitosan
• electrical properties
• mechanical
• membrane
• thermal

Chitosan and poly(vinyl alcohol) were blended and cross-linked with tetraethoxysilane and showed conductive properties. Impedance spectroscopy was used to study the influence of temperature on the electrical properties of the membranes. The conductivity of the membranes was increased with an increase in temperature. Free water was decreased and bound water was increased with an increase in cross-linker contents. The tensile strength improved, whereas elongation at break decreased by increasing the amount of cross-linker contents. The water contact angle of the membranes lowered with time, exhibiting the hydrophilic nature of the membranes. The novel characteristics of biocompatible membranes can be used in biomedical applications including biological schemes that require smaller charge in medicinal apparatus, bioelectrode coatings, etc.

• 出版日期2015-7