Plastics are polymers, but polymers don't have to be plastics. The way plastics are made is actually a way of imitating nature, which has created a huge number of polymers. Cellulose, the basic component of plant cell walls is a polymer, and so are all the proteins produced in your body and the proteins you eat.The properties of a particular plastic depend on what the polymer chains look like, how they are bonded to each other, and which additives have been introduced.  There are two groups of plastics: Thermoplastics, which melt when heated and can be remolded easily. Thermosets, which can't melt or be remolded.
ingredient - a component of a mixture or compound. 1  admixture, intermixture - an additional ingredient that is added by mixing with the base; the growing medium should be equal parts of sand and loam with an admixture of peat moss and cow manure; a large intermixture of sand.
Ingredients. 1  3 pounds chicken parts or broiler/fryer. 2  2 cups pancake mix. 3  1 package Italian Dressing Mix.  salt and pepper, to 1  taste. oregano to taste (optional)  coriander 1  (optional) 1/2 cup olive oil, milk or  water.