University of Massachusetts

Friedrich-Schiller-Universitaet Jena

Axel H E Mueller

Rudolf Faust

Oliver Eckardt

Dirk Joedicke

Felix Helmut Schacher

Sven Breuermann

The present invention relates to a composition for producing a polymer, comprising: a) from 20 to 60% by weight, based on the entire composition, of at least one monomer; and b) from 30 to 60% by weight, based on the entire composition, of at least one branched pre-polymer, wherein the composition is liquid at room temperature and under normal pressure; use of the composition, a method for producing a polymer using the composition, as well as an electrically dimmable glazing that encloses the polymer.

Composition for producing a polymer, a method for producing the polymer, said polymer, use of the polymer, and an electrically dimmable glazing enclosing the polymer

Methods are described herein for converting carbocationically terminated polymers to anionically terminated polymers. These methods comprise: (a) providing a carbocationically terminated polymeric moiety; (b) reacting the carbocationically terminated polymeric moiety with a heterocyclic compound of the formula where &#x2014;X&#x2014; is selected from &#x2014;S&#x2014;, &#x2014;O&#x2014;, &#x2014;NH&#x2014; and &#x2014;NR&#x2014;, and where R is an alkyl group or an aryl group, thereby providing an end-capped polymeric moiety; and (c) reacting the end-capped polymeric moiety with an organolithium compound to yield an anionically terminated polymeric moiety. Also described are block copolymers in which a first polymer block comprising cationically polymerized monomers is linked to a second polymer block comprising anionically polymerized monomers by a group, as well as a polymer in which a polymer block comprising cationically polymerized monomers is linked to a halogenated silane residue or a carbosilane residue by a group.

End-capped polymer chains and products thereof

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Wiesbaden, Germany

Axel H E Mueller