抄録
An easy and practical technique for absorbing water solutions in expanded polytetrafluoroethylene was developed with the aid of a commercial syringe.
The degree of absorption of water solutions increased with the increase of the length of internodal fibrils (pore size) and reached a saturation when the fibril length was over 20μm.
The saturated degree of absorption of heparin solution was much larger than that of water in the same specimen.
When the heparin absorbed specimen was exposed in the running water, the release of heparin was very slow.
