Influence of crosslinking methods toward poly(vinyl alcohol) properties: Microwave irradiation and conventional heating

A.K. Sonker, V. Verma (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)

Abstract

In this study, crosslinking of poly(vinyl alcohol) (PVA) with tartaric acid, as crosslinker, is performed using microwave irradiation. A comparison between the properties of PVA crosslinked using microwave irradiation and conventional heating methods is also discussed. While the water absorption, tensile and thermal properties of PVA crosslinked by either of the methods are comparable, microwave irradiation took only one-eighth (14 min) of the time compared to conventional heating. In comparison with PVA (42 MPa), the strength of PVA crosslinked with 35% TA increased to 145 and 153 MPa for conventional heating and microwave irradiation, respectively. Water absorption of crosslinked PVA film is successively reduced to less than 30% in comparison with PVA (∼200%). Moreover, the crosslinked films are stable at higher temperatures in comparison with PVA.

Original languageEnglish
Article number46125
JournalJournal of Applied Polymer Science
Volume135
Issue number14
DOIs
Publication statusPublished - 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • crosslinking
  • hydrophilic polymers
  • mechanical properties
  • thermal properties

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