聚乳酸立体复合物(sc-PLA)具有高熔点、高耐热、高力学性能、耐溶剂和耐水解等优点,其研究备受关注.sc-PLA材料综合性能与工程塑料接近,作为高耐热生物可降解材料具有广阔的应用前景.但高分子量PLA不易立体复合结晶,所以高分子量sc-PLA材料较难制备.通过嵌段共聚、分子链化学拓扑结构以及结晶条件的改变,可促进PLA的立体复合结晶化,从而制备高分子量sc-PLA材料.文中根据促进高分子量PLA立体复合结晶方法的不同,详细综述了近年高分子量PLA立体复合结晶及其sc-PLA材料制备的研究进展,以及sc-PLA的高分子链结构、结晶条件、材料热性能之间的内在联系.
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