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Stabilizers for peroxydicarbonate initiator solutions
Author(s) -
Frenkel Peter,
Pettijohn Ted
Publication year - 1999
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.10327
Subject(s) - decomposition , thermal decomposition , safer , stabilizer (aeronautics) , materials science , reactivity (psychology) , polymer science , chemical engineering , organic chemistry , chemistry , computer science , engineering , mechanical engineering , medicine , alternative medicine , computer security , pathology
Liquid dialkyl peroxydicarbonates are used as initiators in the PVC industry. Because of the thermal reactivity of these initiators, they require very low temperature storage, shipment, and handling. At temperatures above 10°C, most undergo autoaccelerated self‐induced decomposition. In other words, their self‐accelerating decomposition temperature (SADT) is exceeded. New additives have been discovered which increase the SADT of the initiators. These additives effectively stabilize the products, making them safer to handle, store, and ship. The proprietary additives and a mechanism of stabilization are discussed. We also include a section concerning the implications these products have for future initiator formulation.