Superficial Acid-Base Properties of Polymer Fibres / I. A. Lysak [et al.]
Уровень набора: (RuTPU)RU\TPU\network\4816, AIP Conference ProceedingsЯзык: английский.Серия: Synthesis and physicochemical characteristics of materialsРезюме или реферат: Protolytic properties of fine fibre plastics based on polypropylene, polyethyleneterephthalate and polycarbonate were investigated. Acidic (carboxylic, hydroxyl) and basic Lewis sites (esters, carbonates, epoxies) were discovered on fibres surface using IR spectroscopy. The number of active groups of various nature and their pKa values were evaluated by potentiometric titration in aqueous and non-aqueous media. The tested fibres possess a low capacity for both acidic and basic sites on it. The results indicate that all the polymer fibre materials (PFM) due to the presence of carboxyl groups on the surfaces, enable modification of their surfaces with metal nanoparticles, thereby giving them unique properties, e.g., photocatalytic and bactericidal..Примечания о наличии в документе библиографии/указателя: [References: 22 tit.].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | поверхностные свойства | кислотно-основные свойства | полимерные волокна | полипропилен | полиэтилентерефталат | поликарбонаты | ИК-спектроскопия | металлические наночастицы | бактерицидные свойства Ресурсы он-лайн:Щелкните здесь для доступа в онлайн | Щелкните здесь для доступа в онлайнTitle screen
[References: 22 tit.]
Protolytic properties of fine fibre plastics based on polypropylene, polyethyleneterephthalate and polycarbonate were investigated. Acidic (carboxylic, hydroxyl) and basic Lewis sites (esters, carbonates, epoxies) were discovered on fibres surface using IR spectroscopy. The number of active groups of various nature and their pKa values were evaluated by potentiometric titration in aqueous and non-aqueous media. The tested fibres possess a low capacity for both acidic and basic sites on it. The results indicate that all the polymer fibre materials (PFM) due to the presence of carboxyl groups on the surfaces, enable modification of their surfaces with metal nanoparticles, thereby giving them unique properties, e.g., photocatalytic and bactericidal.
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