Uptake of tridodecylmethylammonium chloride by PVC

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Froehling, P.E. and Koenhen, D.M. and Smolders, C.A. and Bantjes, A. (1977) Uptake of tridodecylmethylammonium chloride by PVC. Journal of Applied Polymer Science, 21 (10). pp. 2855-2859. ISSN 0021-8995

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Abstract:The uptake of tridodecylmethylammonium chloride (TDMAC) by poly(vinyl chloride) has been investigated to provide a more quantitative basis for the preparation of blood-compatible surfaces based on TDMAC-heparin coatings. Sorption isotherms of TDMAC from toluene-cyclohexane and toluene-methanol mixtures have been measured. In toluene-cyclohexane mixtures, the TDMAC uptake is proportional to the degree of swelling of the polymer. From ion-exchange experiments with 36Cl-, it appears that only a small fraction of the TDMAC remains near the PVC surface to provide the heparin binding capacity. Methanol forms a strong H-bonded complex with TDMAC in toluence and prevents its sorption by PVC.
Item Type:Article
Copyright:© 1977 Wiley InterScience
Link to this item:http://purl.utwente.nl/publications/70800
Official URL:http://dx.doi.org/10.1002/app.1977.070211021
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