摘要
丙烯酸接枝乙丙共聚物的结构李丽霞，尹志辉，綦玉臣，殷敬华（中国科学院长春应用化学研究所高分子物理开放实验室长春１３００２２）关键词ＥＰＭ，ＥＰＭ－ｇ－ＰＡＡ，异相成核剂，结晶温度聚烯烃是目前应用最为广泛的塑料之一，但由于它的非极性限制了它与金属和其它...
An ethylene-propylene copolymer(EPM) has been functionalized with acrylic acid(AA) by means of a radical-initiated melt process.Different degrees of grafting have been obtained by varying the overall composition of the reaction mixture.The influence of the grafting degree on the structure has been investigated by differential scanning calorimetry(DSC),fourier transform infrared analysis(FTIR) and wide angle X-ray scattering(WAXS) techniques.The results of structural investigations suggest that the grafting preferentially occurs onto the ethylene sequences of EPM.After acrylic acid was grafted onto EPM,the grafted PAA acted as a nucleation agent,and it caused the increase of crystallization temperature of propylene sequences of EPM-g-PAA.
出处
《应用化学》
CAS
CSCD
北大核心
1996年第6期87-89,共3页
Chinese Journal of Applied Chemistry
关键词
丙烯酸
乙丙共聚物
接枝
聚烯烃
塑料
EPM,EPM-g-PAA,nucleation agent,crystallization temperatrure
