聚-4-甲基戊烯-1(PMP)是一种半结晶性高聚物,主链结构为饱和碳-碳链,由于其大侧基的存在,高分子链间间隙较大,利于气体分子的扩散,因而其均质膜对氧气的透过系数比同样是碳-碳主链的聚乙烯约高一个数量级。 PMP有较高的强度,但在室温下很难溶于一般烃类溶剂中,前文已报道,在PMP结构中引入电负性较大的溴原子后明显地改善了其在有机烃类溶剂中的溶解性。 然而, Poly-4-methylpentene-1 (PMP) is a semicrystalline polymer with a main chain structure of saturated carbon-carbon chains. Due to the presence of large side groups, the gap between polymer chains is large, which is in favor of The diffusion of gas molecules, so that its homogeneous membrane permeability of oxygen than the same carbon-carbon backbone is about an order of magnitude higher polyethylene. PMP has a higher strength but is less soluble in common hydrocarbon solvents at room temperature. It has been previously reported that introduction of a bromine atom with a large electronegativity in the PMP structure significantly improves its solubility in organic hydrocarbon solvents Solubility. however,