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首页> 外文会议>IFMME2013 >Effects of Polymerization Parameters on Aqueous Deposited Copolymerization of Acrylonitrile and Itaconic Acid
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Effects of Polymerization Parameters on Aqueous Deposited Copolymerization of Acrylonitrile and Itaconic Acid

机译：聚合参数对丙烯腈和衣康酸水性沉积共聚的影响

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Pure powdery high molecular weight polyacrylonitrile (HMW-PAN) copolymers were firstly synthesized by aqueous deposited polymerization (ADP) technique employing 2,2'-Azobis(isobutyramidine) dihydrochloride (AIBA) as initiator and itaconic acid (IA) as comonomer. Various PAN polymers were obtained through changing different polymerization parameters. It is indicated that with the increase of total monomer concentration, initiator concentration, reaction temperature and reaction time, polymerization conversions of PAN copolymers all increased. While the molecular weights become greater with the increase of total monomer concentration. With the increase of initiator concentration and reaction temperature (under higher reaction temperature region), the molecular weights decreased. However, the molecular weights only had very little decrease at the end of long extension of reaction time.
机译：首先通过沉积的聚合（ADP）技术作为共聚单体作为引发剂和衣康酸（IA），首先通过沉积的聚合（ADP）技术作为共聚单体作为引发剂和衣康酸（IA）来首先通过沉积的聚合（ADP）技术合成纯粉状的高分子量聚丙烯腈（HMW-PAN）共聚物。通过改变不同的聚合参数获得各种平移聚合物。结果表明，随着总单体浓度的增加，引发剂浓度，反应温度和反应时间，锅共聚物的聚合转化均增加。随着总单体浓度的增加，分子量变得更大。随着引发剂浓度和反应温度的增加（在较高反应温度区域下），分子量降低。然而，分子量在长时间延长反应时间结束时只会减少。

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