摘要
聚丙烯树脂是当今最具发展前途的热塑性高分子材料之一，在聚烯烃与工程塑料，如与聚酰胺或聚酯的共混合金中，聚丙烯接枝共聚物则广泛地被用为相容剂．此外，聚丙烯接枝共聚物还广泛应用于极性添加物等，用于改善制品的表面喷涂性能．聚丙烯接枝共聚物是通过自由基熔融接...
In the melt\|grafting PP system,the addition of appropriate comonomer could significantly enhance the grafting levels of the grafting monomers and reduce the extent of scission of PP backbone.The criterion of selecting of the appropriate comonomer in PP radical grafting system was discussed. Monomers with different Q and e values were grafted on PP and the Q\|e scheme was applied to describe the elationship between those monomers and the comonomer styrene.It was found that the comonomer worked only when the following two conditions were satisfied:The reactivity of the comonomer towards PP macro\|radicals must be greater than that of the grafting monomer;the Q value of comonomer must be close to that of the grafting monomer.The grafting reaction will be restrained if the Q values between the comonomer and the grafting monomer are greatly different.\=
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1999年第3期351-354,共4页
Acta Polymerica Sinica
