Amino terminated oligoimides (AOIs) were prepared by the Michael addition reaction of various bismaleimides with excess of 4,4′-diamino diphenyl methane (DDM). These AOIs were characterized by elemental analysis, FT-IR spectral studies, and number average molecular weight estimated by non-aqueous conductometric titrations. The AOIs were then reacted with acrylol chloride and the resultant acryl end capped oligoimides (AcOIs) were also characterized thermogravimetrically. Each of these AcOI was then combined with a commercially available thermoplastic polyamic acid solution in various proportions. The resultant suspensions were then heated in the presence of azobisisobutyronitrile (AIBN) as a catalyst. The AcOI polymerized through double bond and the polyamic acid was cyclized to form SEMI-IPN polymides, which were analyzed thermogravimetrically. Glass fiber reinforced composites were fabricated by using the suspensions of the AcOI and polyamic acid solution. The composites of SEMI IPN polymides were analyzed for their mechanical, chemical, and electrical properties.
No takes yet. Share an insight, caveat, or question.
Patel et al. (2006) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: