Previous studies on poly(m-carborane-disiloxane-diacetylene)s established that the representative polymer 1, having the carborane, disiloxane and diacetylene moieties in a 1∶2∶1 ratio in its repeating monomeric unit, exhibited plastic characteristics at ambient temperature. In this study, the diacetylene-diluted variants of the above system were synthesized and thermally cured to determine their elastomeric properties. The resultant diacetylene-diluted polymer variants 4a, 4b and 4c, where the corresponding ratios of the constituents were 2∶3∶1, 4∶5∶1 and 9∶10∶1, were determined upon curing to possess Tg values of 56 °C, 45 °C and 35 °C, respectively. Even though the diacetylene dilution resulted in the lowering of the Tg values of the new systems, they were still found to possess predominantly plastic characteristics at ambient temperature.
No takes yet. Share an insight, caveat, or question.
Kolel‐Veetil et al. (2003) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: