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modification of Isotactic Polypropylene for Grafting Reaction

عنوان مقاله: modification of Isotactic Polypropylene for Grafting Reaction
شناسه (COI) مقاله: MIAUCHEMISTRY01_171
منتشر شده در همایش منطقه ای شیمی در سال 1389
مشخصات نویسندگان مقاله:

M. Abbasian - Lab of Chemical Research, Faculty of Science, Payame Noor University, Tabriz-Iran.
M. Shahparian - Islamic Azad University Miyaneh Branch, Miyaneh, Iran
M. Mirzaei - Islamic Azad University Miyaneh Branch, Miyaneh, Iran

خلاصه مقاله:
Isotactic polypropylene (iPP) is one of the most widely used polyolefins because of itsoutstanding physical and chemical properties, such as stiffness, excellent resistance tochemicals, a relatively high deformation temperature, and low density [1]. However, the meltstrength of commodity iPP drops rapidly as the temperature rises. The low melt strengthof iPP leads to poor processing properties in extensional flow-dominated processes, suchas thermoforming, extrusion coating, blow molding, and foaming. It is necessary toimprove the melt strength of iPP to further widen its applications [2]. One of way to improve of Polypropylene is functionalization of this polymer. Hydroxyl functionalization ofpolypropylene was successfully synthesized by a graft copolymerization from maleic anhydride -modified polypropylene (PP-MAH). PP-MAH reacted with to produce a hydroxyl group containing polypropylene (PP-OH). The structure of obtainedcopolymer was investigated by1H NMR, FTIR spectroscopy.

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/829041/