Atom-transfer radical polymerization with Ti(III) halides and alkoxidesстатья
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Дата последнего поиска статьи во внешних источниках: 24 октября 2016 г.
Местоположение издательства:Road Town, United Kingdom
Первая страница:272
Последняя страница:276
Аннотация:Ti(III) halides and butoxide complexed with mono-, di, and tridentate ligands were studied in the atom-transfer radical polymerization (ATRP) of styrene. An important advantage of titanium compounds is that Ti(IV) ions in the highest and air-stable oxidation state are colorless, thereby ensuring the absence of coloration in the final polymer. A better polymerization control was attained under conditions providing the enhanced reactivity of Ti(IV) intermediates due to the presence of ligands with a lower donor ability. When a complex of TiCl3 and 1,2-bis(hexylthio)ethane was used as a catalyst, the styrene polymerization showed the kinetic and molecular mass features inherent to ATRP.