Synthesis and structural characterization of trans‐tactic vinylene–silylene(siloxylene) polymers

Medientyp: E-Artikel
Titel: Synthesis and structural characterization of trans‐tactic vinylene–silylene(siloxylene) polymers
Beteiligte: Marciniec, Bogdan; Małecka, Ewa
Erschienen: Wiley, 2003
Erschienen in: Journal of Physical Organic Chemistry
Sprache: Englisch
DOI: 10.1002/poc.689
ISSN: 0894-3230; 1099-1395
Schlagwörter: Organic Chemistry ; Physical and Theoretical Chemistry
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Beschreibung: <jats:title>Abstract</jats:title><jats:p>Divinyldimethylsilane (<jats:bold>1</jats:bold>), divinyldiphenylsilane (<jats:bold>2</jats:bold>), divinyltetramethyldisiloxane (<jats:bold>3</jats:bold>) and divinyltetraethoxydisiloxane (<jats:bold>4</jats:bold>) in the presence of [{RuCl<jats:sub>2</jats:sub>(CO)<jats:sub>3</jats:sub>}<jats:sub>2</jats:sub>] (<jats:bold>I</jats:bold>) as a catalyst undergo effective silylative coupling (SC) polycondensation giving stereoselectively <jats:italic>trans</jats:italic>‐tactic polymers (<jats:bold>5</jats:bold>–<jats:bold>8</jats:bold>) (<jats:italic>M</jats:italic><jats:sub>w</jats:sub>=3800–8500), yield 75–84%. The products isolated and characterized by <jats:sup>1</jats:sup>H and <jats:sup>13</jats:sup>C NMR and GPC methods cannot be synthesized via ADMET polymerization. Copyright © 2003 John Wiley & Sons, Ltd.</jats:p>

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