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米根霉细胞壁结构性多糖与丙烯酸接枝共聚反应研究 被引量:1

STUDY ON REGULARITIES OF GRAFT COPOLYMERIZATION OF ACRYLIC ACID ONTO FUNGAL CELL WALL
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摘要 For the aim of getting macromolecular flocculant,we studied the copolymerization of acrylic acid onto Rhi.oryzae cell wall structural polysaccharide by the initiation of ceric ammonium nitrate.The effect of concentration of initiator and monomer,reaction temperature and reaction time on grafting percentage was investigated.To Rhi.oryzae cell wall structural polysaccharide the maximal grafting percentage of 135\^5% was achieved at [Ce +4 ]=5mmol/L,[AA]=1mol/L, T =60℃, t =3h.Then choosing organic dyes as the flocculated substances,by comparing with the chitosan,polyacrylamide and Rhi.oryzae cell wall structural polysaccharide before grafting,we studied the flocculent capability of Rhi.oryzae cell wall structural polysaccharide after grafting acrylic acid.The grafting product had excellent flocculent effect on basic and neutral dyes. For the aim of getting macromolecular flocculant,we studied the copolymerization of acrylic acid onto Rhi. oryzae cell wall structural polysaccharide by the initiation of ceric ammonium nitrate. The effect of concentration of initiator and monomer, reaction temperature and reaction time on grafting percentage was investigated. To Rhi. oryzae cell wall structural polysaccharide the maximal grafting percentage of 135.5% was achieved at [Ce+4] = 5mmol/L, [AA] = 1mol/L, T = 60 degreesC, t = 3h. Then choosing organic dyes as the flocculated substances, by comparing with the chitosan, polyacrylamide and Rhi. oryzae cell wall structural polysaccharide before grafting, we studied the flocculent capability of Rhi. oryzae cell wall structural polysaccharide after grafting acrylic acid. The grafting product had excellent flocculent effect on basic and neutral dyes.
出处 《高分子学报》 SCIE CAS CSCD 北大核心 2001年第2期241-244,共4页 Acta Polymerica Sinica
关键词 接枝共聚合 米根霉 丙烯酸 硝酸铈铵 多糖 接枝改性 生物絮凝剂 grafting flocculation Rhi. oryzae acrylic acid ceric ammonium nitrate
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