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发明公开
CN101020728A 高全同聚丁烯－1的本体沉淀合成方法 有权 转让 许可

高全同聚丁烯－1的本体沉淀合成方法
摘要：
一种高全同聚丁烯－1的本体沉淀合成方法，属于高分子聚合物技术。它以丁烯－1作为单体和反应介质，在反应温度为0－70℃的条件下，采用负载钛催化剂催化丁烯－1，以本体沉淀聚合方法合成粉末状的聚丁烯－1聚合物，再通过闪蒸将未聚合的单体脱除重返聚合，得到高全同聚丁烯－1的粉末状颗粒产品。它可采用有机金属铝AlR3作为助催化剂，并可在催化剂体系中加入外给电子体化合物，还可添加氢气作为分子质量调节剂。聚合反应过程在带有螺带搅拌的聚合釜中进行。它工艺简单、效率高、成本低。制备的全同含量大于98％的高有规立构聚丁烯－1聚合物的结晶度大于60％，熔点为127.5℃，已经完全接近于国外同类产品。可广泛推广应用。
摘要（英）：

The present invention is bulk depositing synthesis process of isotactic polybutylene-1, and belongs to the field of polymer technology. The powdered isotactic polybutylene-1 product is obtained through bulk depositing polymerization of butylene-1 as the monomer and reactant medium at 0-70 deg.c in the presence of supported titanium catalyst, and the subsequent flash evaporation to eliminate unpolymerized monomer. The catalyst system may have organic aluminum AlR3 as co-catalyst, added electron donor compound, and hydrogen as molecular weight regulator. The polymerization reaction is performed in a polymerizing kettle with stirring screw belt. The present invention has simple technological process, high efficiency and low cost, and the prepared isotactic polybutylene-1 has high stereoregularity degree, crystallization degree higher than 60 %, and smelting point of 127.5 deg.c.

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