?PREPARATION OF HYDROGELS BASED ON PYA-ACRYLIC ACID USING N,N-METHYLENEBISACRYLAMIDE As CROSSLINKING AGENT

Authors

  • A Rasheed Khan Plastic and Polymer Research Centre, PCSIR Laboratories Complex, Karachi-75280, Pakistan
  • Z H Farooqui Plastic and Polymer Research Centre, PCSIR Laboratories Complex, Karachi-75280, Pakistan
  • Shabih-ul- Hasan Plastic and Polymer Research Centre, PCSIR Laboratories Complex, Karachi-75280, Pakistan
  • Asif Imran Plastic and Polymer Research Centre, PCSIR Laboratories Complex, Karachi-75280, Pakistan

Keywords:

Transparent hydrogel, Degree of swelling, Crosslink density

Abstract

A transparent hydrogel based on PYA-acrylic acid using N,N-methylenebisacrylamide as crosslinking agent was prepared.
Effects of deionised water, distilled water, tap water, aqueous solution of NaCl and NaOH were examined. Degree of swelling
was maximum in deionized water, in aqueous NaCl it became minimum whereas it increased in alkaline medium. Increment in
degree of swelling was due to the formation of carboxyl anions (-COO·) in the polymer network leading to the development of
strong electrostatic forces. Dry hydrogel was white polymeric material.insoluble in most ofthe organic solvents. Decomposition
started after 170°C. The refractive index of hydrogel was 1.332-1.345.

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Published

2000-05-22

How to Cite

Khan, A. R., Farooqui, Z. H., Hasan, S.- ul-., & Imran, A. (2000). ?PREPARATION OF HYDROGELS BASED ON PYA-ACRYLIC ACID USING N,N-METHYLENEBISACRYLAMIDE As CROSSLINKING AGENT. Biological Sciences - PJSIR, 43(1), 60–64. Retrieved from http://v2.pjsir.org/index.php/biological-sciences/article/view/1995

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