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本文研究了乙炔在三异丙醇钕盐[Nd(O-i-Pr)_3]-三烷基铝(AIR_3)-第Ⅲ组份(Ⅲ)络合催化体系中定向聚合的规律。发现在所用稀土络合催化体系中,催化活性不仅与第Ⅲ组份(Ⅲ)添加量有关,而且与铝和钕的摩尔比[AlR_3/Nd(O-i-Pr)_3]有着密切的关系,每种添加剂各有其显示最佳添加效应的铝、钕摩尔比和添加量。同时发现,聚乙炔的顺式含量,除与温度有关外,亦符合上述规律。从而进一步提高了稀土络合催化体系的活性以及聚乙炔膜的顺式含量,在30～5℃制得了高顺式(90—99.5％)具有金属光泽的银色聚乙炔薄膜。此外,本文用红外光谱、顺磁共振、扫描电子显微镜、X衍射、热分析及电阻率、密度测定等对聚乙炔膜进行了表征。
In this paper, the regular polymerization of acetylene in Nd (O-i-Pr) _3] - trialkylaluminum (AIR_3) - Ⅲ complex catalyst system was studied. It was found that the catalytic activity in the rare earth complex catalyst system used is not only related to the amount of the (III) component (III) added but also to the molar ratio [AlR_3 / Nd (Oi-Pr) _3] Each additive has its own aluminum and neodymium molar ratios and additions that show the best additive effect. Also found that the cis-content of polyacetylene, in addition to the temperature, but also comply with the above rules. Thereby further improving the activity of the rare earth complex catalyst system and the cis-content of the polyacetylene film. A high cis (90-99.5%) silver-colored polyacetylene film with a metallic luster was prepared at 30 to 5 ° C. In addition, the polyacetylene films were characterized by means of IR, paramagnetic resonance, scanning electron microscopy, X-ray diffraction, thermal analysis, resistivity and density measurement.