Phenylacetylene-substituted Schiff's base monomers and electroconductive polymers
AssigneeNational Starch and Chemical Corporation
InventorsRobert D. Rossi, Steven P. Fenelli
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Abstract
Novel mono- or difunctional phenylacetylene-substituted Schiff's base monomers useful in the preparation of electrically conducting polymers is disclosed. On heating, these monomers melt to a viscous liquid state, and on continued heating above about 300.degree. C. polymerize to form an electrically insulating thermoset polymer. On further post-cure heat treatment, the polymer becomes electroconductive showing a bulk conductivity of at least 10.sup.-2 S/cm.
Claims18
A polymerizable phenylacetylene substituted Schiff's base monomer whose formula is:
- ##STR10## where B is ##STR11## and R is CH.sub.2, C(CH.sub.3).sub.2, CHOH, ##STR12## C(CF.sub.3).sub.2, SO.sub.2, S, CH.sub.2 CH.sub.2, HC.dbd.CH, O, ##STR13## n=0 or 1;
- and ##STR14## where G is C.tbd.CH, H, ##STR15## and ##STR16## where A is ##STR17## where G' is C.tbd.CH, H, and ##STR18##
A polymer obtained by heating from about the melting point, a Schiff's base monomer whose formula is:
- ##STR26## where B is ##STR27## and R is CH.sub.2, C(CH.sub.3).sub.2, CHOH, ##STR28## C(CF.sub.3).sub.2, SO.sub.2, S, CH.sub.2 CH.sub.2, HC.dbd.CH, O, ##STR29## n=0 or 1;
- and ##STR30## where G is C.tbd.CH, H, ##STR31## and ##STR32## where A is ##STR33## where G' is C.tbd.CH, H, and ##STR34##
A method of bonding one article to another by placing a Schiff's base monomer between the articles to be bonded, applying heat or heat and pressure to said articles sufficient to polymerize the monomer and bond the articles, wherein the Schiff's base monomer comprises the polymerizable phenylacetylene substituted Schiff's base monomer whose formula is:
- ##STR35## where B is ##STR36## and R is CH.sub.2, C(CH.sub.3).sub.2, CHOH, ##STR37## C(CF.sub.3).sub.2, SO.sub.2, S, CH.sub.2 CH.sub.2, HC.dbd.CH, O, ##STR38## n=0or 1;
- and ##STR39## where G is C.tbd.CH, H, ##STR40## and ##STR41## where A is ##STR42## where G' is C.tbd.CH, H, and ##STR43##
Dependencies are inferred from the claim text.