solid-state polymerisation

https://doi.org/10.1351/goldbook.15421
Polymerization of a crystalline monomer.
Notes:
  1. The initiating species can be formed by the action of heat, irradiation of the monomer with, e.g., ultraviolet light or γ-rays, or (less frequently) by chemical initiation.
  2. A solid-state polymerization may lead to a semi-crystalline polymer having a crystal structure different from that of the crystalline monomer, or alternatively it may proceed as a topochemical polymerization.
  3. Depending on the initiation mode and the structure of the monomer, a solid-state polymerization may proceed by a radical or an ionic mechanism.
  4. Use of the term "bulk polymerization" to describe solid-state polymerization is discouraged.
Source:
PAC, 2008, 80, 2163. (Glossary of terms related to kinetics, thermodynamics, and mechanisms of polymerization (IUPAC Recommendations 2008)) on page 2184 [Terms] [Paper]