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chain transfer

The abstraction, by the radical end of a growing chain-polymer, of an atom from another molecule. The growth of the polymer chain is thereby terminated but a new radical, capable of chain propagation and polymerization, is simultaneously created. For the example of alkene polymerization cited for a chain reaction, the reaction:
C00963-1
represents a chain transfer, the radical Cl3C. inducing further polymerization:
C00963-2
C00963-3
The phenomenon occurs also in other chain reactions such as cationic polymerization.
See also: telomerization
Source:
PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1094
InChI=1/C9H8Cl3/c10-9(11,12)7-6-8-4-2-1-3-5-8/h1-6H,7H2
GLXVGOMPIGXQQW-UHFFFAOYAM
InChI=1/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
PPBRXRYQALVLMV-UHFFFAOYAB
InChI=1/C9H8Cl3/c10-9(11,12)7-6-8-4-2-1-3-5-8/h1-6H,7H2
GLXVGOMPIGXQQW-UHFFFAOYAM
InChI=1/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
PPBRXRYQALVLMV-UHFFFAOYAB
InChI=1/C17H16Cl3/c18-17(19,20)13-16(15-9-5-2-6-10-15)12-11-14-7-3-1-4-8-14/h1-11,16H,12-13H2
INCNOWLASNFHBH-UHFFFAOYAL
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Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term: doi:10.1351/goldbook.C00963.
Original PDF version: http://www.iupac.org/goldbook/C00963.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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