Modification of a Polylactide Fibre Surface

作者：Jantas Roman^*; Polowinski Stefan; Stawski Dawid; Szumilewicz Joanna

来源：Fibres & Textiles in Eastern Europe, 2010, 18(4): 87-91.

• polylactide fibres
• grafting
• entrapment
• layer by layer deposition

The properties of polylactide (PLA) fibres were modified by incorporating carboxyl groups into the fibre surface by grafting acrylic acid (AA) or by the entrapment of poly(acrylic acid) (PAA) to the fibre surface. The presence of a PAA layer was confirmed by IR spectrometry. The number of carboxyl groups incorporated into the top layer of the modified fibres was determined by potentiometric titration. The fibres containing carboxyl groups in their top layer were further treated by the Layer-by-Layer method to deposit basic polyelectrolytes such as poly(allylamine hydrochloride) (PAH) or poly(dimethylaminoethyl methacrylate) (PDAMA) alternately with the layers of acidic polyelectrolyte, i.e. PAA. The presence of successive deposited layers was confirmed by electric charge measurements. The modification performed resulted in changes in the properties of PLA fibres, such as dyeability, water sorption and thermal resistance.

• 出版日期2010-12