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The cross-linking reactions of 4,4'-diaminodiphenyl sulphone (DDS) with stoichiometric quantities of glycidyl ether- or tetraglycidyl amine-based epoxy resins were monitored using chemiluminescence (CL) and rheometry. It was found that, when a sample was cured isothermally in air, the CL profile...
Chiral phenylindanediamnine (+)-2 was synthesized starting from chiral phenyl-indanedicarboxylic acid by a Schmidt rearrangement. Ordered amine-acid AB-type monomers, 8 and 9, were also prepared by a controlled reaction of (+)-2 with diacid chlorides. Disordered and ordered polyamides were...
We have investigated the polymerization of polypropargylic butanedioldimeth-acrylate derivatives using electron and x-ray irradiation. The results obtained with the pure resin and carbon-fibre-based composites were compared in terms of kinetics, mechanisms and properties with those obtained by...
An alternative route for the synthesis of high- T g thermally stable polymer foams with pore sizes substantially smaller than those produced by other methods is described, using compositionally asymmetric microphase-separated block copolymers where the minor component, poly(ॅ-methylstyrene), is...
A series of novel semi-interpenetrating networks (semi-1PNS) has been prepared and characterized. The semi-TPNs were prepared by blending a commercially available polyetherimide with commercially available acetylene-terminated polyisoimides. Thermal treatment of the...
In the context of radiation-induced polymerization of bismaleimide monomers, we have investigated the polymerization mechanisms and kinetics of a bismaleimide/vinyl-pyrrolidone system. Several parameters were considered, including the type of dose (electrons or x-rays), power, presence of a...
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