应用化学 ›› 1996, Vol. 0 ›› Issue (6): 87-89.
• 研究简报 • 上一篇 下一篇
李丽霞, 尹志辉, 綦玉臣, 殷敬华
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Li Lixia, Yin Zhihui, Qi Yuchen, Yin Jinghua
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摘要： 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极性高聚物的共混和复合.可通过各种方式对聚烯烃进行改性,将α、β不饱和酸(酐)与聚烯烃进行接枝是改善聚烯烃的有效方法之一.
关键词: EPM, EPM－g－PAA, 异相成核剂, 结晶温度
Abstract: 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.
Key words: EPM, EPM-g-PAA, nucleation agent, crystallization temperatrure
李丽霞, 尹志辉, 綦玉臣, 殷敬华. 丙烯酸接枝乙丙共聚物的结构[J]. 应用化学, 1996, 0(6): 87-89.
Li Lixia, Yin Zhihui, Qi Yuchen, Yin Jinghua. Melt Grafting of Ethylene-Propylene Copolymer:Structural Investigation[J]. Chinese Journal of Applied Chemistry, 1996, 0(6): 87-89.
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http://yyhx.ciac.jl.cn/CN/Y1996/V0/I6/87
