Dark Stool: If your stool is black or bright red in color, it can mean that you are bleeding internally, as a possible result of an ulcer or cancer, and warrants a call to your doctor even if you think it could be hemorrhoids, or tiny tears in the anal tissue, due to constipation and straining.
The chemical reaction in which high molecular mass molecules are formed from monomers is known as polymerization. There are two basic types of polymerization, chain-reaction (or addition) and step-reaction (or condensation) polymerization.
What do Polymer Chemists Do? Polymer chemical professionals create, study, and manipulate the characteristics of polymers to create materials with specific chemical, biological, and physical properties. Polymers permeate every aspect of daily life, and it is difficult to imagine society without synthetic and natural polymers.