2024年9月19日 · 聚异丁烯（Polyisobutylene, PIB）由于其独特的物理化学性质，常常作为胶粘剂或胶粘剂配方中的一个组成部分，其中包括中分子量等级，是粘合剂和密封剂应用的绝佳选 …

2024年8月24日 · Assured pension: 50% of the average basic pay drawn over the last 12 months prior to superannuation for a minimum qualifying service of 25 years. This pay is to be …

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聚异丁烯（Polyisobutylene，PIB）是由异丁烯经正离子聚合制得的聚合物，其分子量可从数百至数百万。 它是一种典型的饱和线型聚合物。 分子链主体不含双键，无长支链存在，其结构单 …

中文名:聚异丁烯,英文名:Poly (isobutylene),CAS:9003-27-4,化学式:C4H8,分子量:56.10632,密度:0.92 g/mL at 25 °C (lit.),熔点:54-56 °C,沸点:300 °C,折射率:n20/D 1.51,MSDS.

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