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.
The synthesis of Nylon 66 was demonstrated in class, using a solution of adipoyl chloride (an activated form of adipic acid) in hexane and hexanediamine in water. The hexane solution floats on top of the aqueous solution, and the two reagents meet at the interface between the two solutions, forming the linear polymer.