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《Chinese Journal of Explosives & Propellants》 2008-01
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Study on Water Dispersion Polymerization of NPBA

LEI Bei,DENG Jian-ru,CHEN Lang,WU Hong-jian(Department of Chemistry and Chemical Engineering,Hunan University,Changsha 410082,China)  
The water dispersion copolymerization of neutral polymeric bonding agent applied in NEPE propellants was studied.Its composition and molecular weight were controllable.Acrylonitrile(AN) and βhydroxyethyl acrylate(HEA) was used as comonomers.Various factors influencing the copolymerization were investigated.Viscosity-average molecular weight of the products were measured by Ubbelohde viscometer,hydroxyl content of copolymers were measured by acetylation method,compostion of copolymers were analyzed by elemental analysis and the structure of copolymers were characterized by IR.The results showed that the best condition for copolymerization were:the quality of AN,HEA,polyvinyl alcohol,β-mercaptoethanol,potassium persulfate and water were 8 g,2 g,0.1 g,0.847 g,0.45 g,100 g,respectively;reaction temperature 60 ℃;reaction time of 2 h.The yield of NPBA was 82.0%,viscosity-average molecular weight was 5200 and hydroxyl content was 2.08 mmol/g.
【CateGory Index】: O631.3
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【Secondary Citations】
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1 QIU Xiao-qing, ZHONG Jia-cheng, LONG Zhen, TIAN Li-hong, ZAN Ling, GONG Chu-qing, LUO Qi-rong(College of Chemistry and Molecular Sciences,Wuhan University, Wuhan 430072,Hubei,China);Preparation of Nanometer TiO_(2)/PS Composite Particles[J];Wuhan University Journal(Natural Science Edition);2003-06
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