화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.32, No.6, 537-543, November, 2008
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Agar 그래프트 폴리아크릴산 겔의 흡수능 최적화
Optimization of the Water Absorption by Crosslinked Agar-g-Poly(acrylic acid)
Karntarat Wuttisela1, Bhinyo Panijpan1, Wannapong Triampo1, 2, and Darapond Triampo1, 3, †
  • 1Institute for Innovation and Development of Learning Process, Mahidol University, Rama 6 Rd, Bangkok 10400, Thailand
  • 2Department of Physics (BioPhysics), Faculty of Science, Mahidol University, Rama 6 Rd, Rajchatavee, Bangkok 10400, Thailand
  • 3Department of Chemistry, Faculty of Science (Salaya Campus), Mahidol University, Phuttamonthon Sai 4 Rd., Salaya, Nakhon Pathom 73170, Thailand
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Crosslinked agar-g-poly(acrylic acid)(x-agar-g-PAA) superabsorbent with a water absorbency (QH2O) of approximately 660 g/g was synthesized by the copolymerization of agar with an acrylic acid monomer. KPS and MBA were used as the initiator and crosslinker, respectively. Grafting was performed in air. Infrared spectroscopy was used to identify the product of copolymerization. The optimum conditions to synthesize the x-agar-g-PAA superabsorbent were 0.1 g of agar, 0.1 g of the KPS initiator, for 15 min; 50% AA monomer, 0.005 g of the MBA crosslinker, for a propagation time of 5 min; and 1 M NaOH for 15 min to allow for saponification. The reaction temperature was 80 ℃.
Keywords:crosslinked agar-g-poly(acrylic acid);water absorbency;solution polymerization
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