D10.
Define copolymer and discuss the benefit of copolymerization on polymer
properties.
A
copolymer is formed when two or more different monomers react during
polymerization. For example, by mixing a dimethacrylate with a methacrylate, it
is possible to cross-link polymer chains. Such a cross-linkage strengthens the
polymer and decreases its solubility.
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By combining different monomers and produce copolymers it is possible to "tailor-make" the final polymer. For example, by using a monomer in a copolymer that produces a long branch along the polymer chain, the back-bone chains will become more separated and the glass transition temperature can be decreased. Thus, a "softer" polymer is made.
