Patent ID: 6515040
Filing Date: 2003-02-04
Classification: C08G

Abstract:
A polymer synthesis method, comprising:irradiating a reaction mixture with microwaves, wherein the microwave radiation is characterized by a varying frequency of about 2.4 to about 7 GHz; a frequency sweep rate of about 0.1 to about 10 GHz/sec; a forward power input of about 200 to about 10,000 Watts per total moles of reactant; and the forward power input of the microwave radiation is adjusted to maintain a known temperature in the composition; and further wherein the reaction mixture comprises aliphatic lactones having from 4 to 12 carbon atoms; aliphatic lactams having from 4 to 12 carbon atoms; amino acids having from 4 to 12 carbon atoms; omega-hydroxyacids having from 4 to 12 carbon atoms; mixtures of aliphatic dicarboxylic acids having from 4 to 12 carbon atoms and aliphatic diamines having from 2 to 12 carbon atoms; mixtures of aliphatic dicarboxylic acids having from 4 to 12 carbon atoms and aliphatic diols having from 2 to 12 carbon atoms; or mixtures of aliphatic lactones having from 4 to 12 carbon atoms and aliphatic lactams having from 4 to 12 carbon atoms.