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摘要：本發(fā)明公開了一種磷化聚丙撐碳酸酯共聚物的制備方法，本發(fā)明提供的磷酸化后的聚丙撐碳酸酯熱穩(wěn)定性有很大的提升；磷酸化反應可以應用于聚丙撐碳酸酯的衍生產(chǎn)物；磷酸化反應產(chǎn)物具有一定的阻燃能力，本發(fā)明利用磷酸根將PPC進行了修飾，將磷酸根基團修飾到了PPC主鏈上，經(jīng)過TGA和紅外測試對PPC進行測試發(fā)現(xiàn)磷酸根基團對PPC進行了封端，同時對CPPC進行同樣反應發(fā)現(xiàn)CPPC在發(fā)生封端反應的同時鏈上的氯原子也與磷酸根進行了反應，進而改善了PPC的性質，增強了PPC的熱穩(wěn)定性。
Abstract:The invention discloses a preparation method of a phosphated poly(propylene carbonate) copolymer. The poly(propylene carbonate) modified by phosphorylation exhibits significantly improved thermal stability. The phosphorylation reaction can be applied to the derivatives of poly(propylene carbonate), and the phosphorylation product possesses certain flame-retardant properties. In this invention, poly(propylene carbonate) (PPC) is modified by phosphate groups, which are grafted onto the main chain of PPC. Tests on PPC via thermogravimetric analysis (TGA) and infrared spectroscopy reveal that the phosphate groups play a role in terminating the PPC chains. Meanwhile, the same reaction conducted on chlorinated poly(propylene carbonate) (CPPC) shows that during the chain termination reaction, the chlorine atoms on the CPPC chains also react with phosphate groups. This further improves the properties of PPC and enhances its thermal stability.
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