Preparation and Polymerization of Benzaldehyde Formaldehyde Azine (1-Phenyl-2,3-diaza-1,3-butadiene)
Preparation and Polymerization of Benzaldehyde Formaldehyde Azine (1-Phenyl-2,3-diaza-1,3-butadiene)
复制标题
苯甲醛甲醛吖嗪(1-苯基-2,3-二氮杂-1,3-丁二烯)的制备与聚合
DOI：
10.1021/ma991529n
复制
发表时间：
2000
期刊：
影响因子：
5.5
通讯作者：
M. Kamachi
中科院分区：
文献类型：
--
作者：
A. Hashidzume;and Atsuki Tsuchiya;Y. Morishima;M. Kamachi
制备了具有CN键的新单体苯甲醛甲醛嗪（BzFAz），并通过几种引发剂对其聚合性能进行了研究。由三氟乙酸（CF3COOH）、丁基锂（n-C4H9Li）和甲基碘化镁（CH3MgI）引发聚合得到BzFAz聚合物。通过元素分析、红外光谱、拉曼光谱和核磁共振氢谱研究了这些聚合物的结构。CF3COOH和n-C4H9Li得到的聚合物由3,4-单元组成，而CH3MgI得到的聚合物由1,4-和3,4-单元组成。在CH3MgI引发的聚合反应中，1,4-单位的含量随着所用溶剂介电常数的增加而增加。粉末x射线衍射结果表明，n-C4H9Li制备的聚合物具有高度结晶性。此外，热重分析表明，这些聚合物在300℃以下完全分解。
Benzaldehyde formaldehyde azine (BzFAz) was prepared as a new monomer having CN bonds, and its polymerizability was investigated by using several initiators. Polymers were obtained from BzFAz by polymerizations initiated by trifluoroacetic acid (CF3COOH), butyllithium (n-C4H9Li), and methylmagnesium iodide (CH3MgI). The structures of these polymers were investigated by elemental analysis, IR, Raman, and 1H NMR spectroscopies. The polymers obtained by CF3COOH and by n-C4H9Li consisted of 3,4-units, whereas that obtained by CH3MgI consisted of both 1,4- and 3,4-units. In the polymerization initiated by CH3MgI, the content of 1,4-unit increased as an increase in the dielectric constant of the solvent used. Powder X-ray diffraction of the polymers revealed that the polymer obtained by n-C4H9Li was highly crystalline. In addition, the thermogravimetric analyses showed these polymers were fully decomposed below 300 °C.