Preface Section 1: Materials with Improved Properties at Synthesis and Modification of Polymers Peculiarities of Methanofullerene Structure Revealed by UV-Spectroscopy; Yu. N. Biglova Biodegradable Polymer Films on Low-Density Polyethylene, Modified Chitosan; M. V. Bazunova and R. M. Akhmetkhanov Chemical Modification of Syndiotactic 1,2-Polybutadiene; A. B. Glazyrin, M. I. Abdullin, O. S. Kukovinets, and A. A. Basyrov Approach to Creating Prolonged Drugs on Carbon-Polymer Basis; M. V. Bazunova and S. V. Kolesov Usage of Speed Sedimentation Method for Enzyme Degradation of Chitosan; E. I. Kulish, V. V. Chernova, S. V. Kolesov, and I. F. Tuktarova Studying of Antibiotics Release from Medicinal Chitosan Films; E. I. Kulish and A. S. Shurshina Features of Enzymatic Destruction of Chitosan in Acetic Acid Solution; E. I. Kulish, I. F. Tuktarova, and V. V. Chernova Section 2: New Methods for the Synthesis of Isoprene-Monomer for the Production of Isoprene Rubber Quantum-Chemistry Study of the Formation Mechanism of Hydrogenated Furans in Trifluoroacetic Acid by Prins Reaction; I. V. Vakulin, R. R. Syrlybaeva, R. F. Talipov, G. R. Talipova, R. R. Faizullina, and A. V. Allagulova Theoretical Investigation of 1,3-Dioxanes Formation in Prins Reaction by Addition of Formaldehyde Oligomers To Alkenes; I. V. Vakulin, R .F. Talipov, O. Yu. Kupova, G. R. Talipova, A. V. Allagulova, and R. R. Faizullina Quantum-Chemistry Study of the Features of Participation of Formaldehyde Oligomers in Prins Reaction; I. V. Vakulin, R .F. Talipov, O. Yu. Kupova, G. R. Talipova, A. V. Allagulova, and R. R. Faizullina Quantum Chemical Investigation of Features of Formation of O- Containing Heterocycles by Prins Reaction; I. V. Vakulin, R. F. Talipov, O. Yu. Kupova, G. R. Talipova, A. V. Allagulova, and R. R. Faizullina Section 3: New Technological Solutions in the Production of Polymers Modification of A Neodymium Catalyst for Synthesis Polyisoprene; V. P. Zakharov, V. Z. Mingaleev, E. M. Zakharova, I. D. Zakirova, and L. A. Murzina Oil Neutralization in Turbulent Microreactor; F. B. Shevlyakov, T. G. Umergalin, V. P. Zakharov, I. D. Zakirova, and E. M. Zakharova Processing of Black Sulfuric Acid to Give the Desired Products; T. V. Sharipov, A. G. Mustafin, R. N. Gimaev, F. Kh. Kudasheva, and A. D. Badikova Study of Chromium Complexation of Diphenyl Carbazide on Activated Carbon Fiber Surface; A. V. Grigoryeva, E. R. Valinurova, F. Kh. Kudasheva, I. M. Kamaltdinov, M. V. Mavletov, and I. Sh. Ahatov Band Structure of Solid Solutions of Copper and Silver Chalcogenides; R. A. Yakshibaev, A. D. Davletshina, N. N. Bikkulova, and G. R. Akmanova Interaction of a Pair of Impurities and Kinks in the Sine-Gordon Equation; E. G. Ekomasov and A. M. Gumerov Voltammetric Electronic Tongue Application for Identification of Mineral Oils; A. V. Sidelnikov, D. M. Bikmeev, F. Kh. Kudasheva, and V. N. Maystrenko Section 4: Biologically Active Substances Such As Inhibitors of the Catalytic Activity of Biopolymers The Study of Structure-Antiarrhythmic Activity Relationship of Biological Activity Compounds Using Sar-Methodology; V. R. Khairullina, A. Ya. Gerchikov, and F. S. Zarydiy Research of Medicine Structural Descriptors for Treatment of Mcf-7 Ductal Invasive Breast Carcinoma; V. R. Khairullina, A. Ya. Gerchikov, M. N. Vasilyev, and F. S. Zarudiy Computer Modeling of "Structure-Antitumor Activity" Relationship Using SAR Techniques and QSAR Methodology; V. R. Khayrullina, A. Ya. Gerchikov, M. N. Vasiliev, I. A. Taipov, and F. S. Zarudiy Virtual Screening of Natural and Synthetic 5-Lipoxygenase Inhibitors; A. Ya. Gerchikov, V. R. Khairullina, I. A. Taipov, and F. S. Zarydiy Kinetics of Liquid-Phase Oxidation of Polyvinyl Alcohol; Yu. S. Zimin, I. M. Borisov, and A. G. Mustafin Activity of Hydrolytic Enzymes of Basidiomycetes According To Their Trophic Features; I. A. Shpirnaya, V. O. Tsvetkov, Z. A. Berezhneva, and R. I. Ibragimov Index