Rashes Due to HIV Medication. HIV rashes often appear as either a side-effect of, or an allergic reaction to certain antiretroviral medication. NNRTI medication: Causes the majority of skin rashes, with nevirapine rashes being the most severe. Women are at a particular risk of developing nevirapine rashes.
Nylon was the first commercially successful synthetic thermoplastic polymer. Commercially, nylon polymer is made by reacting monomers which are either lactams, acid/amines or stoichiometric mixtures of diamines (-NH2) and diacids (-COOH). Mixtures of these can be polymerized together to make copolymers.
Soon after its introduction it was used to make parachutes, ropes and tents during the Second World War, as well as nylon stockings and toothbrushes. Itâs a strong synthetic fibre, which resists abrasion. Nylon doesnât shrink or stretch through washing, but it is degraded by ultraviolet light. Nylon is made when the appropriate monomers (the chemical building blocks which make up polymers) are combined to form a long chain via a condensation polymerisation reaction.