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Thermo-oxidative Stability and Flammability of Three-dimensional Polymers Based on Olygocarbonate-methacrylates

P. M. Aseeva ; The Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow, USSR
A. A. Berlin ; The Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow, USSR
B. A. Ushkov ; The Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow, USSR
B. T. Shashkova ; The Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow, USSR
T. Ya. Kefeli ; The Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow, USSR


Puni tekst: engleski pdf 8.088 Kb

str. 183-191

preuzimanja: 76

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Sažetak

By the irreversible condensation reaction of the mono-methacrylic
ester of ethylene glycol and chlorocarbonic esters of 2,2-dimethylpropandiol-
1,3 and 2,2-dimethylene chloride-propandiol-1,3,
two olygocarbonate methacrylate (OCM-I and -II, respectively)
containing unsaturated ends were synthesised. The polymerization
of OCM-I and OCM-II in the presence of cumene hydro.peroxide
and an accelerator gave two cross-liinked polymers Ln a yield
of 70-750/o. The thermal and thermo-oxidative decompositions of the prepared polymers were studied by the thermogravimetric method
and by characterization of the volatile pyrolysis products and the
nonvolatile polymer residue. The influence of the polymer
structure on the mechanism of the decomposition reactions in vacuo
as well as iin the presence of oxygen was discussed. The temperature
dependence of thermostabiLity was compared with some
polymer flammability parameters.

Ključne riječi

Hrčak ID:

196814

URI

https://hrcak.srce.hr/196814

Posjeta: 200 *