Citation: . MORPHOLOGICAL CHARACTERIZATION OF POLY (N-VINYLCARBAZOLE) OBTAINED WITH ASYMMETRICALLY STEREOSELECTIVE POLYMERIZATION*[J]. Chinese Journal of Polymer Science, ;1999, 17(2): 159-163. shu

MORPHOLOGICAL CHARACTERIZATION OF POLY (N-VINYLCARBAZOLE) OBTAINED WITH ASYMMETRICALLY STEREOSELECTIVE POLYMERIZATION*

Received Date: 12 December 1997

The morphological characterizations of poly(N -vinylcarbazole)(PVCZ) obtained by asymmetricallystereoselective polymerization were studied using x-ray diffraction pattern, DSC and GPC. The results showthat the PVCZs have lower crystallinities (11.0～18.6%) and lower melting heats (2.2～7.5 J/g), but thedegree of crystallinities of the PVCZ samples obtained using the organic salts (acid) with chiral orstereodifferentiating ligands are higher than that using radical and general protonic initiator. It has shown that the crystallization is directly related to the pecking density of the hexagonal array of the rodlike molecules formed from the helical chain.
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