Abstract:
Temperature investigations of the UV and Raman spectra of three polydialkylsilanes with an oxygen atom in the side chain have shown that all polymers studied undergo a thermochromic phase transition in the interval from+20 to −70 °C which is not abrupt but is kinetically limited; this transition is of the order–disorder type and is related to a change in the conformation of the polymer main chain from a disordered one to all-trans.
Document Type:
Article
Language: English
Citation:
S. S. Bukalov, M. V. Teplitsky, L. A. Leites, Ch.-H. Yuan, R. West, “Complex thermochromic phase transitions in three polydialkylsilanes with an oxygen atom in the side chain”, Mendeleev Commun., 6:4 (1996), 135–137
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https://www.mathnet.ru/eng/mendc/v6/i4/p135
This publication is cited in the following 10 articles:
Vibrational Spectra of Organometallics, 2018, 241
Sergey S. Bukalov, Larissa A. Leites, Robert C. West, “Regularities and Peculiarities of Solid Polydialkylsilane Order-Disorder Transitions as Studied by Optical (UV, Raman and IR) Spectroscopy”, Silicon, 2:4 (2010), 235
Sergey S. Bukalov, Yan V. Zubavichus, Larissa A. Leites, Julian R. Koe, Robert West, “UV, Raman and XRD study of polymorphism of poly(methyl-n-propylsilane)”, Polymer, 50:20 (2009), 4845
Sergey S Bukalov, Larissa A Leites, Gaidar I Magdanurov, Robert West, “Excitation dependence of Raman spectra of various polydialkylsilane conformations and σ–σ conjugation”, Journal of Organometallic Chemistry, 685:1-2 (2003), 51
Robert West, “A new theory for rotational isomeric states: polysilanes lead the way”, Journal of Organometallic Chemistry, 685:1-2 (2003), 6
S. S. Bukalov, L. A. Leites, V. Lu, T. D. Tilley, “Order-Disorder Phase Transition in Poly(di-n-butylstannane) Observed by UV-Vis and Raman Spectroscopy”, Macromolecules, 35:5 (2002), 1757
Sergey S. Bukalov, Larissa A. Leites, Irina V. Krylova, Mikhail P. Egorov, “UV and Raman study of thermochromic phase transition in poly(di-n-hexylgermane)”, Journal of Organometallic Chemistry, 636:1-2 (2001), 164
Josef Michl, Robert West, Silicon-Containing Polymers, 2000, 499
Uwe Herzog, Robert West, “Heterosubstituted Polysilanes”, Macromolecules, 32:7 (1999), 2210
Shu Hotta, Kohzo Ito, Handbook of Oligo‐ and Polythiophenes, 1998, 45
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