POLYMERIZATION OF N-VINYLCARBAZOLE IN THE PRESENCE OF ORGANIC SALTS WITH CHIRAL OR STEREODIFFERENTIATING LIGANDS

Authors
CHEN CF SU Q LIU WH CHEN YM XI F
Citation
Cf. Chen et al., POLYMERIZATION OF N-VINYLCARBAZOLE IN THE PRESENCE OF ORGANIC SALTS WITH CHIRAL OR STEREODIFFERENTIATING LIGANDS, Journal of macromolecular science. Pure and applied chemistry, A33(8), 1996, pp. 1017-1023
Citations number
31
Categorie Soggetti
Polymer Sciences
Journal title
Journal of macromolecular science. Pure and applied chemistry → ACNP
ISSN journal
10601325
Volume
A33
Issue
8
Year of publication
1996
Pages
1017 - 1023
Database
ISI
SICI code
1060-1325(1996)A33:8<1017:PONITP>2.0.ZU;2-W
Abstract
Organic salts as initiators [AB-+(-): Ph(3)*C+ClO4-, Ph(3)*C+SbCl6-, (-)Sp(ClO4-)-Cl-+, and (-)(Sp)*(3+)(2)(ClO4)(3)(-)] and catalysts [A( +)B(-): (+)CSA*; A*B-+*(-): ph(3)*C+(+)CSA*(-) and (-)Sp*(+)(+)CSA*(- )] are prepared and characterized by the dissociation constant (K-d), fraction of free ions (alpha), and specific rotation. The asymmetrical ly stereoselective induction of the initiators and catalysts in the po lymerization of N-vinylcarbazole is in the order AB-+*(-) > A(+)B*(-) > AB-+(-). The specific rotations of the poly(N-vinylcarbazole) (PVC Z)s obtained are generally in this order.