Title: polycrystalline polymer
Long Title: IUPAC Gold Book - polycrystalline polymer
DOI: 10.1351/goldbook.14252
Status: current

Definition
Crystalline polymer in which a large number of polymer crystallites coexist.

Note
Polymer crystallites and amorphous domains in a specimen may be organized randomly or with some degree of order.

Example
Ordered or partially ordered polycrystalline polymers are polymer fibers, spherulites, and multilayer aggregates.

Related Terms
- amorphous domains: https://goldbook.iupac.org//terms/view/14247
- polymer fibers: https://goldbook.iupac.org//terms/view/14253

Source
- PAC, 2011, 83, 1831. 'Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)' on page 1856 (https://doi.org/10.1351/PAC-REC-10-11-13)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/14252/html
- json: https://goldbook.iupac.org/terms/view/14252/json
- xml: https://goldbook.iupac.org/terms/view/14252/xml

Citation: Citation: 'polycrystalline polymer' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.14252
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Accessed: 2026-08-05T04:59:06+00:00