Superficial acid-base properties of polymer fibres

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 o...

Full description

Saved in:
Bibliographic Details
Main Authors: Lysak, Ilya, Skvortsova, Lidia, Lysak, Galina, Malinovskaya, Tatiana, Sherstoboeva, Maria
Format: Conference Proceeding
Language:English
Subjects:
Carbonates
Esters
Fibers
Infrared spectroscopy
Nanoparticles
Polymers
Properties (attributes)
Titration
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4964526