3-Methyl-1,3-pentadiene has been polymerized with the Al(C2H5)2Cl/Nd(OCOC7H15)3/Al[CH2CH(CH3)2]3 system to crystalline polymers consisting essentially of cis-1,4 units (≥80%). NMR examination has shown that the polymers have an isotactic structure. This conclusion was confirmed by X-ray analyses, which further indicated that cis-1,4 isotactic poly(3-methyl-1,3-pentadiene) exists in polymorphic modifications.
SYNTHESIS AND CHARACTERIZATION OF ISOTACTIC CIS-1,4-POLY(3-METHYL-1,3-PENTADIENE)
MEILLE, STEFANO VALDO
1995-01-01
Abstract
3-Methyl-1,3-pentadiene has been polymerized with the Al(C2H5)2Cl/Nd(OCOC7H15)3/Al[CH2CH(CH3)2]3 system to crystalline polymers consisting essentially of cis-1,4 units (≥80%). NMR examination has shown that the polymers have an isotactic structure. This conclusion was confirmed by X-ray analyses, which further indicated that cis-1,4 isotactic poly(3-methyl-1,3-pentadiene) exists in polymorphic modifications.File in questo prodotto:
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