Preparation and characterization of water-soluble graft copolymer of acrylonitrile onto carboxymethyl chitin.     Wang, Fangning; Sun, Binbin; Zhou, Yiting; Chen, Jie.    Department of Chemical Engineering,  Shaanxi Vocational and Technical College of National Defence Industry,  Xian, Shaanxi Province,  Peop. Rep. China.    Yingyong Huagong  (2007),  36(7),  668-669, 676.  Publisher: Yingyong Huagong Zazhishe,  CODEN: YHIUA7  ISSN: 1671-3206.  Journal  written in Chinese.    AN 2008:1146606    CAPLUS  

Abstract

Graft copolymn. of acrylonitrile (AN) onto carboxymethyl chitin (CMC) was carried out.  The effect of reaction temp. and time, amt. of initiator, solvent, monomer on graft copolymn. were studied.  The optimum condition were as following: CMC 0.4 g, water 40.0 mL, initiator 50.0 mg, monomer 2.5 g, reaction temp. 60C, reaction time 2 h.  Copolymer had water-soly. and the reason of water-soly. was analyzed.  

Indexing -- Section 35  (Chemistry of Synthetic High Polymers)

Bibliographic Information

Graft copolymerization of 9'-acryloxyspirooxazine with carboxymethyl chitin.     Sun, Binbin; Zhou, Yiting; Fu, Zhengsheng; Chen, Jie.    Department of Chemical Engineering,  Shaanxi Institute of Technology,  Xian, Shanxi Province,  Peop. Rep. China.    Yingyong Huagong  (2007),  36(5),  448-450.  Publisher: Yingyong Huagong Zazhishe,  CODEN: YHIUA7  ISSN: 1671-3206.  Journal  written in Chinese.    AN 2008:750535    CAPLUS  

Abstract

A 9'-acryloxyspirooxazine grafted carboxymethyl chitin was synthesized.  The effect of reaction temp. and time, amt. of solvent, initiator and monomer on graft copolymn. were studied.  The optimum condition of the max. grafting efficiency was shown as following: CMC 0.4 g, H2O 50.0 mL, initiator 0.35 mmol, monomer 3.0 mmol, reaction temp. 70, reaction time 4.0 h, the grafting% was 65%, grafting efficiency was 25.2%.  

Indexing -- Section 79-7  (Inorganic Analytical Chemistry)   

Polymerization  
    (graft; graft copolymn. of 9'-acryloxyspirooxazine with carboxymethyl chitin)   

Bibliographic Information

Graft copolymerization of methyl acrylate onto carboxymethyl chitin initiated by APS.     Wang, Fangning; Sun, Binbin; Zhou, Yiting; Chen, Jie.    Department of Chemical Engineering,  Shanxi Institute of Technology,  Xian, Shanxi Province,  Peop. Rep. China.    Huaxue Yu Shengwu Gongcheng  (2007),  24(6),  18-19,51.  Publisher: Huaxue Yu Shengwu Gongcheng Bianjibu,  CODEN: HYSGAF  ISSN: 1672-5425.  Journal  written in Chinese.    AN 2008:840363    CAPLUS  

Abstract

Using ammonium persulfate (APS) as initiator, the graft copolymer of Me acrylate with carboxymethyl chitin was prepd. and the effects of reaction condition on graft copolymn. were studied.  The optimum condition was shown as follows: carboxymethyl chitin 0.4 g, Me acrylate 2.0 g, water 50.0 mL, APS 60.0 mg, at 50C, reaction time 3.0 h.  Graft copolymer was water-sol.  The reaction was initiated by the oxidn.-redn. system which was composed of APS and the amino-group of carboxymethyl chitin.  

Indexing -- Section 35  (Chemistry of Synthetic High Polymers)