The radiation chemistry of poly(dimethyl-siloxane)

The radiation chemistry of poly(dimethyl-siloxane)

The radiation chemistry of poly(dimethyl siloxane) has been investigated with respect to identification of the nature of the small molecule chain scission products. Low molecular weight linear and cyclic products have been identified through the use of 29Si solution NMR, GPC and MALDI‐TOF mass spect...

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Veröffentlicht in:Macromolecular symposia. 2000-07, Vol.156 (1), p.95-102
Hauptverfasser: Hill, David J.T., Preston, Christopher M.L., Whittaker, Andrew K., Hunt, Susan M.
Format: Artikel
Sprache:eng
Schlagworte:
Chain scission
Depolymerization
Low molecular weights
Mass spectrometry
Nuclear magnetic resonance
Radiation chemistry
Siloxanes
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Zusammenfassung:The radiation chemistry of poly(dimethyl siloxane) has been investigated with respect to identification of the nature of the small molecule chain scission products. Low molecular weight linear and cyclic products have been identified through the use of 29Si solution NMR, GPC and MALDI‐TOF mass spectrometry. It has been suggested that the low molecular weight cyclic products are formed by back‐biting depolymerization reactions.
ISSN:1022-1360
1521-3900
DOI:10.1002/1521-3900(200007)156:1<95::AID-MASY95>3.0.CO;2-E