《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2000, Vol. 6 ›› Issue (02): 56-58.
• 理论与实践 • Previous Articles Next Articles
SUN Ruihuan,MAO Lijing,HU Yuanjie,et al
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Abstract: A new kind of medical sponges,ionic polyvinyl alcohol sponges(i-PVA sponges)were prepared by surface-grafting of acrylic acid onto acetal-PVA sponges.i-PVA sponges obtained show excellent hydrophilicity and water-absorption.The i-PVA sponges are three dimentional porous network.Because there are great amount of carboxyl and sodium carboxylate groups on PVA molecule chains,the speed of water absorption and water-absorptivity is >2.9mm/s and >15 times respectively.That is,in the case of the cataract-extraction,the polyion-modified sponges much more advantageous than any traditional nonionic polymer sponges.
Key words: ionic polyvinyl alcohol sponges, water-absorption, three dimentional porous network, cataract-extraction
SUN Ruihuan;MAO Lijing;HU Yuanjie;et al. Structure and properties of ionic PVA sponges [J]. 《Chinese Journal of Rehabilitation Theory and Practice》, 2000, 6(02): 56-58.
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