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.
Princess Diana Wedding Cake. Official Cake Wedding cake and cooks for the wedding of Prince Charles and Lady Diana Spencer in 1981. Getty Images / Terry Fincher. The official cake for the wedding dinner was made by the Naval Armed Forces, appropriate for the wedding of Prince Charles, a naval commander.
A slice of Princess Diana and Prince Charles' wedding cake has sold for $1,375 (Â£920) - less than half the estimate. The 34-year-old slice of fruit loaf was purchased on Thursday during a Nate D Sanders auction in Los Angeles, after it was estimated to sell for a staggering $4,000 (Â£2,600).