| abstract |
A polyamide and a polyamide composition containing the polyamide, the polyamide is a polyamide having a dicarboxylic acid unit and a diamine unit,nMore than 40 mole% of the dicarboxylic acid unit and less than 100 mole% are naphthalene dicarboxylic acid units,nThe 60 mol% or more and 100 mol% or less of the diamine unit are branched aliphatic diamine units and linear aliphatic diamine units of arbitrary constituent units, and relative to the branched aliphatic diamine unit and the The total amount of linear aliphatic diamine units is 100 mol%, and the proportion of the branched aliphatic diamine units is 60 mol% or more. |