TERMIUM Plus®

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FREE RADICAL INITIATED CHAIN GROWTH POLYMERIZATION [1 record]

Record 1 1982-07-19

English

Subject field(s)
  • Chemistry
  • Plastics Manufacturing
DEF

A reaction initiated by a free radical (molecule in which one of the carbon valences is not satisfied) derived from a polymerization catalyst. Polymerization proceeds by the chain reaction addition of monomer molecules to the free radical ends of growing chain molecules.

Key term(s)
  • free radical initiated chain growth polymerization
  • free radical initiated polymerization

French

Domaine(s)
  • Chimie
  • Plasturgie
CONT

Dans les polymérisations radicalaires, l'amorceur est une molécule génératrice, par coupure spontanée ou thermique, de tronçons fugaces appelés radicaux libres portant des valences libres, c'est-à-dire non liées à un motif atomique. Le radical libre se fixe sur une molécule vinylique en ouvrant la double liaison de celle-ci et en formant un nouveau radical libre capable de fixer une nouvelle molécule monomère, et ainsi de suite. La phase de croissance est une réaction en chaîne (...)

Spanish

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