A polyamide obtained by polycondensation of a diamine component containing at
least
50 mol % of 2-methyl-1, 5-pentanediamine and a dicarboxylic acid component containing
at least 50 mol % of azelaic acid,
comprising the following properties of (1) to (4),
(1) when a stretched film is polarized in an electric field of 200 MV/m,
a remanent polarization is at least 30 mC/m2,
(2) the relative viscosity of a 1 g/dl solution of the polyamide in
96% concentrated sulfuric acid at 25 C. is 1.3 to 5.0,
(3) the glass transition temperature is 80 C. or less and a calorific
value at a cooling crystallization exotherm peak is 5 J/g or less, and
(4) it is soluble in an amount of at least 5 mass % at 25 C.
in at least one selected from methanol, ethanol and 2-propanol,
and a resin composition containing the above polyamide and an electrically conductive material.
