3 research outputs found

    The mechanism for the electrooxidation of procarbazine pharmaceutical preparation in alkaline media and its mathematical description

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    The mechanism for the electrooxidation of procarbazine in alkaline media has been proposed. The process is realized completely on the electrode surface and is adsorption-controlled. The oscillatory behavior in this case is more probable, than for neutral media and may be caused by influences of electrochemical oxidation and salt dissolution from the electrode surface

    ΠœΠ°Ρ‚Π΅ΠΌΠ°Ρ‚ΠΈΡ‡Π΅ΡΠΊΠΎΠ΅ описаниС Β«ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΎΡ„Π΅Π½ΠΎΠ²ΠΎΠ³ΠΎ парадокса» для потСнциостатичСской элСктрополимСризации элСктрохимичСски ΠΌΠΎΠ΄ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… Ρ‚ΠΈΠΎΡ„Π΅Π½ΠΎΠ²

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    The phenomenon of "polythiophene paradox" for insoluble polythiophenes based on electrochemically modified monomers has been described theoretically. The corresponding mathematical model was examined using linear theory of stability and bifurcation analysis. Stability conditions of steady state, monotonic and oscillatory instabilities have also been obtained.Π―Π²Π»Π΅Π½ΠΈΠ΅ Β«ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΎΡ„Π΅Π½ΠΎΠ²ΠΎΠ³ΠΎ парадокса» для нСрастворимых ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΎΡ„Π΅Π½ΠΎΠ² Π½Π° основС элСктрохимичСски ΠΌΠΎΠ΄ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… ΠΌΠΎΠ½ΠΎΠΌΠ΅Ρ€ΠΎΠ² Π±Ρ‹Π»ΠΎ описано тСорСтичСски. Π‘ΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰Π°Ρ матСматичСская модСль Π±Ρ‹Π»Π° рассмотрСна с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΠΉ Ρ‚Π΅ΠΎΡ€ΠΈΠΈ устойчивости ΠΈ Π±ΠΈΡ„ΡƒΡ€ΠΊΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°. Условия устойчивости стационарного состояния, ΠΌΠΎΠ½ΠΎΡ‚ΠΎΠ½Π½ΠΎΠΉ ΠΈ Π°Π²Ρ‚ΠΎΠΊΠΎΠ»Π΅Π±Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ нСустойчивостСй Ρ‚Π°ΠΊΠΆΠ΅ Π±Ρ‹Π»ΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹

    ΠœΠ°Ρ‚Π΅ΠΌΠ°Ρ‚ΠΈΡ‡Π΅ΡΠΊΠΎΠ΅ описаниС Β«ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΎΡ„Π΅Π½ΠΎΠ²ΠΎΠ³ΠΎ парадокса» для потСнциостатичСской элСктрополимСризации элСктрохимичСски ΠΌΠΎΠ΄ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… Ρ‚ΠΈΠΎΡ„Π΅Π½ΠΎΠ²

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    Received: 08.10.2016; accepted: 22.10.2016; published: 30.12.2016.ΠŸΠΎΡΡ‚ΡƒΠΏΠΈΠ»ΠΎ: 08.10.2016; приянято: 22.10.2016; ΠΎΠΏΡƒΠ±Π»ΠΈΠΊΠΎΠ²Π°Π½ΠΎ: 30.12.2016.The phenomenon of "polythiophene paradox" for insoluble polythiophenes based on electrochemically modified monomers has been described theoretically. The corresponding mathematical model was examined using linear theory of stability and bifurcation analysis. Stability conditions of steady state, monotonic and oscillatory instabilities have also been obtained.Π―Π²Π»Π΅Π½ΠΈΠ΅ Β«ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΎΡ„Π΅Π½ΠΎΠ²ΠΎΠ³ΠΎ парадокса» для нСрастворимых ΠΏΠΎΠ»ΠΈΡ‚ΠΈΠΎΡ„Π΅Π½ΠΎΠ² Π½Π° основС элСктрохимичСски ΠΌΠΎΠ΄ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… ΠΌΠΎΠ½ΠΎΠΌΠ΅Ρ€ΠΎΠ² Π±Ρ‹Π»ΠΎ описано тСорСтичСски. Π‘ΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰Π°Ρ матСматичСская модСль Π±Ρ‹Π»Π° рассмотрСна с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΠΉ Ρ‚Π΅ΠΎΡ€ΠΈΠΈ устойчивости ΠΈ Π±ΠΈΡ„ΡƒΡ€ΠΊΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°. Условия устойчивости стационарного состояния, ΠΌΠΎΠ½ΠΎΡ‚ΠΎΠ½Π½ΠΎΠΉ ΠΈ Π°Π²Ρ‚ΠΎΠΊΠΎΠ»Π΅Π±Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ нСустойчивостСй Ρ‚Π°ΠΊΠΆΠ΅ Π±Ρ‹Π»ΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Ρ‹
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