FORMATION POLYMER COMPOSITES ON BASIS OF POLIEFIRBORATOV WITH THE USE OF TIN (IV) BISCITRATE

The processes of policondensation of boric acid with ethyleneglycol and glycerin in presence a maleinic anhydride are studied. Descriptions of the got oligomers, their speed of copolymerization, are certain with triethylenglykoldimethacrylate. The methods of receipt of hightdispersed SnO2 are offered by the alkaline hydrolysis of row of prekursors in the environment of water solution of oligoethylenglycolmaleinatborate was determinated

ACTION OF BIMETALLIC Co(II)-Sn(IV), Co(II)-Ge(IV) COMPLEX WITH A HYDROXYCARBONIC(PHOSPHONIC) ACIDS OF KINETICS POLYCONDENSATION AND PROPERTIES OF POLYGLYCOLMALEINATPHTALATE

Bimetallic complexes of Co(II)-Sn(IV), Co(II)-Ge(IV) with citric, tartaric, xylaric and 1-hydroxyethylidenediphosphonic acids as activators of polycondensation of phthalic and maleic anhydride with ethylene glycol are investigated. Initial speeds of copolymerization with the threeethylenglycoldimethacrylates, the method of obtaining coatings for hightemperature hardening with epoxy resins have been defined

PREPARATION AND PROPERTIES OF POLYGLYCOLMALEINATPHTALATES MODIFIED WITH BIS(CITRATE)STANATES(IV) OF 3d-METALS AND THEIR COPOLYMERS WITH EPOXY RESIN EDR-20

As activators of polycondensation of phthalic and maleic anhydride with ethyleneglycoles, binuclear Sn(IV) - Co(II) (Ni(II), Mn(II), Cu(II))complexes with citric acid were explored. Complexes were added in reaction mixture as water solutions. Polycondensation was conducted at 175ºC and 250ºC, reactions with epoxy resin were carried out at 150ºC. Certain structure of polyesters was obtained with methods of IR- and the mass-spectroscopy. The coating was produced at high temperature and hardened with an epoxy resin EDR-20 in cyclohexanone solution. Satisfying description of copolymer’s tapes of modified polyglycolmaleinatphtalates with epoxy olygomer are saved at the maintenance of polyesters up to 90%. The values of adhesion were determined using hardness and stability to the abrasion of the got lacquered coverages. The best physico-mechanical descriptions of interdimerss were observed when we used a copper complex. This can be explained because of formation of hight dispersible particles of metallic copper. As an additional factor, strengthening of the fungicide activity of polyester resin can be increased with hight dispersible particles of copper by introduction of acetate or special complex of copper and by heating to 200ºC after finishing of polycondensation reaction. The offered systems can be used for the receipt of fungicide varnishes and paints

Polymerization in sulfur dioxideacrylamide-water system

При взаимодействии в системе оксид серы (IV)–акриламид–вода образуется полиакриламид (ПАА), строение и физико-химические свойства которого зависят от температуры синтеза. Показано, что добавка гидрокарбоната к реакционной смеси уменьшает константу роста цепи. Полученные образцы ПАА охарактеризованы данными элементного анализа, ИК-спектроскопии и вискозиметрии. Наличие в образцах ПАА следовых количеств серы указывает на то, что сополимеризация акриламида с оксидом cepы (lV) в воде нивелируется гидролизом, в отличие от протекания реакции в органических растворителях в присутствии инициаторов. Методом вискозиметрии получены зависимости вязкости от концентрации, характерные для неионогенных полимеров. Существенные различия в значениях характеристической вязкости и средних молярных масс образцов, полученных в системах с добавкой и без добавки гидрокарбоната, очевидно, указывает на то, что введение последнего уменьшает константу скорости процесса роста цепи. Предположено, что взаимодействие в системе SO2—CH2=CHC(0 )NH2—H2O сопровождается анионной гомополимеризацией АА с образованием ПАА. Очевидно, акриламид с оксидом серы (IV) в воде образует комплексы с переносом заряда (подобно другим амидам), которые выступают в качестве катализаторов наблюдаемой гомополимеризации.The structure and physicochemical properties of polyacrylamide (PAA), which is formed in the sulfur dioxide–acrylamide–water reaction system, depend on the synthesis temperature. It has been shown that the addition of hydrocarbonate to the reaction mixture reduces the constant of chain growth. The obtained PAA samples were characterized by elemental analysis, IR spectroscopy and viscosimetry. The presence of trace amounts of sulfur in the PAA samples indicates that the copolymerization of acrylamide with sulfur dioxide in the water is leveled by hydrolysis, in contrast to the reaction in organic solvents in the presence of initiators. The dependences of viscosity on concentration, which are typical of non-ionic polymers, were obtained by viscosimetry method. The significant dijferences in the intrinsic viscosity values and average molar masses of the samples obtained in the systems with and without hydrocarbonate additives clearly indicate that its addition decreases the rate constant of the process of chain growth. It has been suggested that the interaction in the S0 2—CH2=CHC(0 )НІІ2-ІІ2 0 system is accompanied by anionic homopolymerization of acrylamide with the formation of PAA. It is obvious that acrylamide with sulfur dioxide in water forms complexes with charge transfer (similarly to other amides) which act as catalysts in the observed homopolymerization

ОТРИМАННЯ ТА ВЛАСТИВОСТІ МОДИФІКОВАНИХ БІС (ЦИТРАТО)СТАНАТАМИ(IV) 3d-МЕТАЛІВ ПОЛІГЛІКОЛЬМАЛЕЇНАТФТАЛАТІВ ТА ЇХНІХ КОПОЛІМЕРІВ З ЕПОКСИДНОЮ СМОЛОЮ ЕД-20

As activators of polycondensation of phthalic and maleic anhydride with ethyleneglycoles, binuclear Sn(IV) - Co(II) (Ni(II), Mn(II), Cu(II))complexes with citric acid were explored. Complexes were added in reaction mixture as water solutions. Polycondensation was conducted at 175ºC and 250ºC, reactions with epoxy resin were carried out at 150ºC. Certain structure of polyesters was obtained with methods of IR- and the mass-spectroscopy. The coating was produced at high temperature and hardened with an epoxy resin EDR-20 in cyclohexanone solution. Satisfying description of copolymer’s tapes of modified polyglycolmaleinatphtalates with epoxy olygomer are saved at the maintenance of polyesters up to 90%. The values of adhesion were determined using hardness and stability to the abrasion of the got lacquered coverages. The best physico-mechanical descriptions of interdimerss were observed when we used a copper complex. This can be explained because of formation of hight dispersible particles of metallic copper. As an additional factor, strengthening of the fungicide activity of polyester resin can be increased with hight dispersible particles of copper by introduction of acetate or special complex of copper and by heating to 200ºC after finishing of polycondensation reaction. The offered systems can be used for the receipt of fungicide varnishes and paints.В якості активаторів поліконденсації фталевого і малеїнового ангідридів з етиленгліколем досліджено біядерні Sn(IV)-Co(II) (Ni(II), Mn(II), Cu(II)) комплекси з лимонною кислотою. Проведено їх спільне високотемпературне тверднення з епоксидною смолою ЕД-20, вивчено властивості кополімерів

Formation polymer composites on basis of poliefirboratov with the use of tin (IV) biscitrate

Изучены процессы поликонденсации борной кислоты с этиленгликолем и глицерином в присутствии малеинового ангидрида, определены характеристики полученных олигомеров, их скорость сополимеризации с триэтиленгликольдиметакрилатом. Предложены способы получения высокодисперсного SnO2 путём щелочного гидролиза ряда прекурсоров в среде водного раствора лигоэтиленгликольмалеинатбората и определены характеристики SnO2 -содержащих полимерных композитов.Вивчено процеси поліконденсації борної кислоти з етиленгліколем та гліцерином у присутності малеїнового ангідриду,визначено характеристики одержаних олігомерів, їх швидкість кополімеризації з триетиленглікольдіметакрилатом. Запропоновано способи одержання високодисперсного SnO2 шляхом лужного гідролізу низки прекурсорів у водному розчині лігоетиленглікольмалеїнатборату і визначено характеристики полімерних композитів, які містять SnO2.The processes of policondensation of boric acid with ethyleneglycol and glycerin in presence a maleinic anhydride are studied. Descriptions of the got oligomers, their speed of copolymerization, are certain with triethylenglykoldimethacrylate. The methods of receipt of hightdispersed SnO2 are offered by the alkaline hydrolysis of row of prekursors in the environment of water solution of oligoethylenglycolmaleinatborate was determinated

Preparation and properties of polyglycolmaleinat ph talat es modified with bis(citrate)stanates(iv) of 3D-metals and their copolymers with epoxy resin EDR-20

В качестве активаторов поликонденсации фталевого и малеинового ангидридов с этиленгликолем исследованы биядерные Sn(IV)–Co(II) (Ni(II), Mn(II), Cu(II)) комплексы с лимонной кислотой. Проведено совместное высокотемпературное отверждение синтезированных олигомеров с эпоксидной смолой ЭД-20, изучены свойства сополимеров.В якості активаторів поліконденсації фталевого і малеїнового ангідридів з етиленгліколем досліджено біядерні Sn(IV)–Co(II) (Ni(II), Mn(II), Cu(II)) комплекси з лимонною кислотою. Проведено їх спільне високотемпературне тверднення з епоксидною смолою ЕД20, вивчено властивості кополімерів.As activators of polycondensation of phthalic and maleic anhydride with ethyleneglycoles, binuclear Sn(IV) – Co(II) (Ni(II), Mn(II), Cu(II))complexes with citric acid were explored. Complexes were added in reactionmixture aswater solutions. Polycondensation was conducted at 175ºC and 250ºC, reactions with epoxy resin were carried out at 150ºC. Certain structure of polyesters was obtained with methods of IR- and the mass-spectroscopy. The coating was produced at high temperature and hardened with an epoxy resin EDR-20 in cyclohexanone solution. Satisfying description of copolymer’s tapes of modified polyglycolmaleinatphtalates with epoxy olygomer are saved at the maintenance of polyesters up to 90%. The values of adhesion were determined using hardness and stability to the abrasion of the got lacquered coverages. The best physico-mechanical descriptions of interdimerss were observed when we used a copper complex. This can be explained because of formation of hight dispersible particles of metallic copper. As an additional factor, strengthening of the fungicide activity of polyester resin can be increased with hight dispersible particles of copper by introduction of acetate or special complex of copper and by heating to 200ºC after finishing of polycondensation reaction. The offered systems can be used for the receipt of fungicide varnishes and paints