Grafting of chitosan: Structural, thermal and antimicrobial properties

ÇANKAYA N.

Journal of the Chemical Society of Pakistan, vol.41, no.2, pp.240-245, 2019 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 41 Issue: 2
  • Publication Date: 2019
  • Journal Name: Journal of the Chemical Society of Pakistan
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.240-245
  • Keywords: Antimicrobial activity, Biodegradable polymers, Chitosan, Chitosan methacrylate, Graft copolymer
  • Uşak University Affiliated: Yes

Abstract

Summary: In this study, some new chitosan materials were synthesized by the grafting of chitosan with the monomers such as 1-vinylimidazole (VIM), methacrylamide (MAm) and 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS). First of all, chitosan methacrylate was prepared by esterification of primary -OH group with methacryloyl chloride a 25.13% yield by mole. The monomers were grafted into chitosan methacrylate via free radical polymerization using 2,2'-Azobisisobutyronitrile as an initiator in N,N-dimethylformamide. The graft copolymers were characterized by FT-IR spectra and elemental analysis. Thermal stabilities of the graft copolymers were determined by TGA (thermo gravimetric analysis) method. The synthesized chitosan methacrylate and its graft copolymers were tested for their antimicrobial activity against bacteria and yeast.