HETEROATOM CONTAINING CYCLIC DIMERS

摘要

The present invention provides cyclic dimers of alpha acids and polymers derived therefrom. Also provided are processes for preparing and methods of using the cyclic dimers and the polymers derived from the cyclic dimers.

主权项

1. A process for forming a polymer comprising repeat units of Formula (XX), the process comprising heating a plurality of monomers of Formula (II) to a temperature from about 100° C. to about 200° C. such that the monomers form the polymer comprising repeat units of Formula (XX): wherein:
R1, R2, R3, R4, and R5 are independently hydrogen, hydrocarbyl, or substituted hydrocarbyl;R6 is hydrogen, hydrocarbyl, or substituted hydrocarbyl;R7 is not present;Z is sulfur, sulfone, sulfoxide, or selenium; andn is an integer ≧1.