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Electroinitiated polymerization of trioxane dispersed in n ‐hexane and n ‐heptane
Author(s) -
Mengoli Giuliano,
Vidotto Graziano
Publication year - 1974
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1974.070181018
Subject(s) - trioxane , polymerization , electrolyte , monomer , materials science , heptane , polymer chemistry , chemical engineering , polymer , precipitation polymerization , chain transfer , copolymer , chain growth polymerization , chemistry , radical polymerization , organic chemistry , electrode , composite material , engineering
The possibility of electroinitiating the polymerization of melted trioxane dispersed in n hexane and n ‐heptane has been investigated. It was found that the addition under stirring of an electrolyte to these dispersions added a satisfactory electrolytic conductivity: this fact allows, by a fast current pulse, the anode transfer of a charge suitable to initiate the polymerization process. The kinetics of the polymerization do not exhibit substantial induction periods and depend both on the charge initially transferred to the system and on the diluent‐to‐monomer ratio. The molecular weights of the products, which are generally high, are controlled by the same parameters and by the extent of the monomer‐to‐polymer conversion. The effect on the process of the background electrolytes perchlorate and tetrafluoborate of tetrabutylammonium has been investigated, and the possible initiation mechanism has been discussed. The conditions also for obtaining thermally stabilized products by trioxane–1,3‐dioxolane copolymerization in the same systems have been shortly investigated.