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Synthesis and Characterizations of Calcium Di(meth)acrylate Divinyl Monomers and Melt Surface Graft Functionalization with Linear Low Density Poly(ethylene)

机译:二甲基丙烯酸钙二乙烯基单体的合成,表征及线性低密度聚乙烯的熔体表面接枝官能化

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Calcium diacrylate (CDA) and calcium dimethacrylate (CDM) divinyl monomers were synthesized by a solvo thermal method. The FTIR spectra showed a peak at 1650 cm(-1) due to the presence of a C=C for both CDA and CDM. Proton NMR and carbon NMR confirmed the structure of CDA and CDM synthesized by a solvo thermal method. DSC determined the melting temperatures of CDA and CDM. XRD indicated the presence of a d(110) plane peak for CDA and CDM. The % weight residue that remained above 700 degrees C in TGA method confirmed the higher thermal stability of CDA. Thus, synthesized CDA and CDM were surface grafted on linear low density poly(ethylene) (LLDPE) at 160 degrees C under inert atmosphere by thermolysis method. FTIR confirmed the presence of C=O stretching due to CDA and CDM in LLDPE backbone after thermolysis reaction. H-1-NMR confirmed the chemical grafting of CDM onto LLDPE.
机译:通过溶剂热法合成了二丙烯酸钙(CDA)和二甲基丙烯酸钙(CDM)二乙烯基单体。 FTIR谱显示在1650 cm(-1)处有一个峰,这是因为CDA和CDM都存在C = C。质子NMR和碳NMR证实了通过溶剂热法合成的CDA和CDM的结构。 DSC确定CDA和CDM的熔化温度。 XRD指示CDA和CDM存在d(110)平面峰。在TGA方法中,残留重量百分数保持在700摄氏度以上,这证明了CDA具有更高的热稳定性。因此,在惰性气氛下,通过热解法,将合成的CDA和CDM在160℃在线性低密度聚乙烯(LLDPE)上表面接枝。 FTIR证实热解反应后,LLDPE主链中由于CDA和CDM而导致C = O拉伸。 H-1-NMR证实了将CDM化学接枝到LLDPE上。

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