Bisphenol aryl fluoride AB2 monomer and the hyperbranched polymer therefrom
申请人:The United States of America as represented by the Secretary of the Air Force
公开号:US06512124B1
公开(公告)日:2003-01-28
A self-polymerizable AB2 monomer of the formula
The resulting AB2 monomer can be polymerized to afford high molecular, low viscosity hyperbranched ether-ketone-imide polymer having repeating units with hydroxyl endgroups.
Hyperbranched poly(arylene-ether-ketone-imide) containing thermally reactive groups
申请人:The United States of America as represented by the Secretary of the Air Force
公开号:US06639042B1
公开(公告)日:2003-10-28
New hyperbranched polymers having repeating units of the formula
The polymer is prepared by the polymerization of the AB2 monomer N-{3,5-bis(4-hydroxybenzoyl)benzene}-4-fluoroisophthalimide.
Bis(trialkylsiloxyphenyl)-arylfluoride imide AB2 monomers, hyperbranched polymers and nanoclay composites therefrom
申请人:The United States of America as represented by the Secretary of the Air Force
公开号:US08138257B1
公开(公告)日:2012-03-20
Novel aromatic AB2 imide monomer with thermally reactive trialkylsiloxy and aryl fluoride moieties, which can be polymerized to form hyperbranched aromatic polyimides in the presence of a metal fluoride catalyst. Nanoclay composites were generated by either (i) direct blending of a preformed hyperbranched aromatic polyimide and Closite nanoclay (≦20 wt %) or (ii) blending of the AB2 monomer, CsF catalyst and Closite nanoclay (≦20 wt %) followed by thermal solid-state polymerization of the AB2 monomer homogeneously dispersed in the nanoclay.