Electrostatic dissipating properties of poly(oxyethylene)amine-modified polyamides

摘要: A series of hydrophilic poly(ether amide)s were prepared from the copolymerization dicarboxylic acids (including terephthalic, adipic, and sebacic acids) two combined poly(oxyalkylene)-diamines characterized by GPC, NMR, IR, DSC. The electrostatic dissipating property, probed measuring surface resistivity, was correlated with molecular weight (MW), content incorporated poly(oxyethylene)diamine, morphology resulting polymers. wide range resistivity 10 12 to 6.3 Ω/□ can be achieved. Poly(oxyethylene)diamine MW 2000 is most effective amine among those studied. decreased 9.9 8.7 7.8 7.6 increasing incorporation poly(oxyethylene)diamine 0 25 50 76 wt % accordingly, in case poly(sebacamide)s. Adding a second amine, either triethylene glycol diamine (MW 148) or poly(oxypropylene)diamine 230), requisite 2000) rendered polyamides have good structural integrity. importance hydrogen bonding associated amide functionality indirectly evidenced comparing analogous polyamines, latter curing diglycidyl ether bisphenol A.