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Poly(hydridocarbyne) (PHC) is one of a class of carbon-based random network polymers primarily composed of tetrahedrally hybridized carbon atoms, each having one hydride substituent, exhibiting the generic formula ()n. PHC is made from bromoform, a liquid halocarbon that is commercially manufactured from methane. At room temperature, poly(hydridocarbyne) is a dark brown powder. It can be easily dissolved in a number of solvents (tetrahydrofuran, ether, toluene etc.), forming a colloidal suspension that is clear and non-viscous, which may then be deposited as a film or coating on various substrates. Upon thermolysis in argon at atmospheric pressure and temperatures of 110 °C to 1000 °C, decomposition of poly(hydridocarbyne) results in hexagonal diamond (Lonsdaleite). More recently poly(hydridocarbyne) has been synthesized by a much simpler method using electrolysis of chloroform (May 2008)〔Toppare L ''et al.'' (2008) Facile Synthesis of Poly(hydridocarbyne): A Precursor to Diamond and Diamond-like Ceramics, ''Journal of Macromolecular Science, Part A'' 45 (5), May, 358–363, doi=10.1080/10601320801946108.〕 and hexachloroethane (June 2009).〔Toppare L ''et al.'' (2009) Electrochemical polymerizatıon of hexachloroethane to form poly(hydridocarbyne): a pre-ceramic polymer for diamond production, ''Journal of Materials Science'' 44 2774–2779, doi=10.1007/s10853-009-3364-4.〕 The novelty of PHC (and its related polymer poly(methylsilyne)) is that the polymer may be readily fabricated into various forms (e.g. films, fibers, plates) and then thermolized into a final hexagonal diamond ceramic. ==References== * * (【引用サイトリンク】year=2004 ) (US patent application) * * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Poly(hydridocarbyne)」の詳細全文を読む スポンサード リンク
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