Articles with improved flame retardancy and/or melt dripping properties

A composition comprising:

• a plurality of nylon-based polymer fibers, wherein one or more of the nylon-based polymer fibers are melt blended with a polymer comprising the following groups:
• and one or more of the remaining nylon-based polymers comprise a first functional group and one or more of the remaining nylon-based polymers comprise a second functional group, the second functional group being different from and complementary to the first functional group;
• wherein one or more of the nylon-based polymers crosslink upon exposure to flame, and wherein the first functional group and the second functional group are selected from the following functional group combinations:
• amine and epoxide, amine and anhydride, amine and isocyanate, amine and aldehyde, amine and alkyl halide, amine and alkyl sulfonate, and amine and thiol.