New facile and rapid synthesis of polyamides and polyimides by microwave-assisted polycondensation

Conference · Fri Dec 01 04:00:00 EST 1995

OSTI ID:126901

Imai, Yoshio ^[1]

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1. Tokyo Institute of Technology (Japan)

The application of microwave energy using a domestic microwave oven to organic synthesis as well as to radical polymerization of vinyl monomers and curing of polymers have been known during the past decade, however, there is no report so far an the synthesis of condensation polymers under microwave irradiation. We have developed successfully a new method for the facile and rapid synthesis of aliphatic polyamides from both co-amino acids and nylon salts, aliphatic polyimides from diamine-tetra-carboxylic acid salt monomers, and aromatic polyamides with use of a condensing agent by the microwave-assisted polycondensation. In these preparations, the presence of the polar solvents having good solubility of monomers coupled with high boiling point were necessary, which facilitated the high temperature polycondensation in solution or plastisized melt state, yielding the condensation polymers with high inherent viscosities by the microwave heating for only 2-5 min.

• OSTI ID: 126901
• Report Number(s): CONF-950402--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CURING
MICROWAVE HEATING
MONOMERS
POLYAMIDES
POLYMERIZATION
POLYMERS
SALTS
SOLUBILITY
SOLVENTS
SYNTHESIS
VINYL MONOMERS