Other

University of Lowell

Alexandre Blumstein

Jawed Asrar

Sundar Subramanyam

A family of ionic polyacetylenes containing long sequences of conjugated double bonds in the backbone with ionic charges adjacent to or in conjugation with the backbone, and a synthetic process for preparing them, are disclosed. These polymers, which are soluble in many solvents, including water, are mono- and di-substituted polyacetylenes that are extensively conjugated. The charge density and geometry of charge distribution depends on the number and nature of the substituents.

Substituted extensively conjugated ionic polyacetylenes

Polymeric liquid crystals which retain their mesomorphic structure and properties associated therewith at temperatures below their glass transition temperature are described. The polymers contain mesogene and spacer units in alternating sequence in the main chain and may carry aliphatic substituents.

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Chelmsford, MA, United States of America

Alexandre Blumstein