Free download of : Polymer Chemistry by L. M. Harwood & C. J. Moody
Polymer science is, of course, driven by the desire to produce new materials for new applications. The success of materials such as polyethylene, polypropylene, and polystyrene is such that these materials are manufactured on a huge scale and are indeed ubiquitous. There is still a massive drive to understand these materials and improve their properties in order to meet material requirements; however, increasingly polymers are being applied to a wide range of problems, and certainly in terms of developing new materials there is much more emphasis on control. Such control can be control of molecular weight, for example, the production of polymers with a highly narrow molecular weight distribution by anionic polymerization.
The control of polymer architecture extends from block copolymers to other novel architectures such as ladder polymers and dendrimers (see Chapter 7).
Cyclic systems can also be prepared (see Chapter 5), usually these are lower molecular weight systems, although these also might be expected to be the natural consequence of step-growth polymerization at high conversion ……