DR. Maurits Dekker: A Pioneer in Scientific Publishing |
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Authors: | Marcel Dekker |
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Affiliation: | Institute of Chemistry Academia Sinica , Beijing, 100080, People's Republic of China |
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Abstract: | Abstract Organic salts as initiators [A? +B?: Ph?3C+ClO? 4, Ph?3C+SbCl? 6, (?)Sp? +ClO? 4, and (?)(Sp)?2 3+(ClO4)? 3] and catalysts [A +B??: (+)CSA?; A? +B??: ph?3C+(+)CSA?? and (?)Sp?+(+)CSA??] are prepared and characterized by the dissociation constant (K d), fraction of free ions (α), and specific rotation. The asymmetrically stereoselective induction of the initiators and catalysts in the polymerization of N-vinylcarbazole is in the order A? +B?? > A +B?? > A? +B?. The specific rotations of the poly(N-vinylcarbazole) (PVCZ)s obtained are generally in this order. |
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