Conclusion
Structure development in polymers General concepts

The development of structures has been studied using a number of experimental techniques:

• in laboratory experiments, using commercial equipment or specially designed devices, to determine the influence of an isolated factor on crystallization, e.g. flow ;

• in product analysis: fibers, films, tubes, injection-molded parts, etc. ;

• in online measurements.

All these experiments have produced a vast body of data, making it possible to propose a general description of polymer crystallization in forming processes. The general concepts thus identified are applied in the article