Carboxyl‐randomized poly(2‐ethyl hexyl acrylate) (CRPEHA) and epoxy‐randomized poly(2‐ethylhexyl acrylate) (ERPEHA) were synthesized by solution polymerization technique in the form of liquid rubbers. The liquid rubbers were characterized by IR and 1H‐NMR spectroscopic analysis, nonaqueous titration, and GPC. The liquid rubbers were pre‐reacted with the epoxy resin and the modified epoxy networks were made by curing with an ambient temperature curing agent. The modified epoxy networks containing different concentrations of CRPEHA (A‐1) and ERPEHA (B‐1) were evaluated with respect to their thermal and impact properties. The optimum properties were obtained at 10‐phr concentration of a (1 : 1) mixture of CRPEHA and ERPEHA. Fracture surface analysis by scanning electron microcopy indicated the presence of a two‐phase microstructure.
No takes yet. Share an insight, caveat, or question.
Kar et al. (2004) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: