Poly caprolactone -based fibres

Poly(e-caprolactone) (PCL) is a synthetic polymer which has many advantages biodegradability mechanical properties similar to polyolefins hydrolysability similar to polyesters compatibility with many other polymers ease of melt 

This procedure can be used also for preparation of fibres containing various additives. Williamson et prepared PCL fibres with addition of ovalbumin 

Zeng et al. investigated a preparation of ultrafine poly(caprolactone) fibres by electrospinning technique to achieve a biodegradable material with high surface area so that the rate of biodegradation could be substantially increased. The technique itself involves spinning the polymer from solution 

Incorporation of additives (ovalbumin, progesterone) resulted in a decrease of tensile strength, modulus and elongation at break compared to fibres without additive. A continuous decrease in the properties was observed with increasing concentration of the additive. Similar concentration-dependent deterioration of mechanical properties was observed also if A -(3,4-dimethoxyciimamoyl)-anthranilic acid was mixed into PCL fibres during melt spiiming.  

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