检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:许小聪[1] 刘美华[1] 卢彦兵[1] 徐伟箭[1]
出 处:《高分子学报》2007年第4期308-313,共6页Acta Polymerica Sinica
基 金:教育部博士点基金(基金号20030532003)资助项目
摘 要:分别通过一步加料和分步加料的方法,以对苯二胺(A2)、均苯三酸(B3)和对氨基苯甲酸(AB)为原料进行溶液缩聚反应,制备了具有良好溶解性的芳香聚酰胺共聚物.产物的结构通过IR、1H-NMR得到证实.采用IR和1H-NMR对一步加料共聚反应的共聚行为进行研究,并初步考察了3种不同单体对反应的影响.A series of soluble aromatic polyamide copolymers were prepared by the one-step polymerization or two-step polymerization of p-phenylene diamine (A2 monomer), trimesic acid ( B3 monomer), and p-aminobenzoic acid (AB monomer). The structure of resulting polymers was confirmed by IR, ^1H-, and ^13C-NMR measurements. The copolymerization behavior was investigated by IR and ^1H-NMR. ^1H-NMR spectra of the polymers indicated that the AB monomer reacted by inches with the increasing of reaction time. The copolymers synthesized by two-step polymerization had different structures as compared with the one-step copolymer. The influence of three different monomers on the polymerization was investigated.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.3