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Provisional Recommendations

Polymer Division

Definitions of Terms Relating to Crystalline Polymers

The recommendations embodied in this document concern the terminology relating to the structure of crystalline polymers and the processes of polymer crystallization. Polymers are normally partly crystalline and polymer crystals (or crystallites) coexist therefore with amorphous regions. Reference to actual polymer crystals of microscopic dimensions is essential to define the characteristic properties of crystalline polymers. Such crystals correspond only very approximately to the infinite, three-dimensionally periodic arrangements of atoms defining the ideal crystalline state.

> Download full text of the Provisional Recommendations (pdf file - 395KB)

Comments by 31 May 2011
To: Professor G. Allegra
Dipartimento de Chimica
Via L. Mancinelli 7
Materiali e Ingegneria Chimica
Milano I-20131
E-mail: giuseppe.allegra@polimi.it

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