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>High‐temperature elastomers: A systematic series of linear poly(carborane–siloxane)s containing icosahedral (CB10H10C) cages. II. Thermo‐oxidative behavior
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High‐temperature elastomers: A systematic series of linear poly(carborane–siloxane)s containing icosahedral (CB10H10C) cages. II. Thermo‐oxidative behavior
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机译：High‐temperature elastomers: A systematic series of linear poly(carborane–siloxane)s containing icosahedral (CB10H10C) cages. II. Thermo‐oxidative behavior
AbstractA study of oxidative instability versus molecular structure for a systematic series of well‐defined linear poly(carborane‐siloxane)s is reported. These polymers form the backbone components of the most recently developed high‐temperature elastomers. The basic structure iswhere (1)x= 1, 3, 4, 5, ∞ (2) A = endgroups (reactive and inert); (3)Z=meta‐carborane,para‐carborane (forx= 3); (4)R = CH3, R = C2H4CF3(forx= 3), one in five R's = C6H5with the remainder CH3(forx= 4); (5) molecular weight = ∼10,000, ∼50,000 (forx= 3). Thermomechanical spectra in air (∼1 cps) from 130°C → 625°C → 130°C at 3.6°C/min, thermogravimetric data from 25°C → 700°C in air (3.6°C/min), and differential thermal analysis data from 25°C → ∼450°C in air (15°C/min) are presented. Thermo‐oxidative stability is discussed in terms of structur
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