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|Title:||New materials for contact lenses prepared from Si- and Ti-alkoxides by the sol-gel process|
Schmidt, Helmut K.
|Year of Publication:||1984|
|OPUS Source:||Journal of non-crystalline solids. - 63. 1984, 1/2, S. 283-292|
|SWD key words:||Kontaktlinse|
|DDC notations:||620 Engineering and machine engineering|
|Publikation type:||Journal Article|
|Abstract:||Methods of synthesizing materials for hard contact lenses were developed by hydrolysis and condensation of an epoxide substituted alkoxysilane and Ti-alkoxides. To enforce sufficient tensile strength, polymethacrylates were incorporated as linear crosslinking elements using a methacryloxy substituted alkoxysilane as a hook between the siliceous network and the polymer chain. The incorporation of titania led to dense monolithic products which could be cured only with some minor shrinkages. Good wettabilities [contact angles with water: (25 ± 5)°] are due to glycol groupings formed by the epoxide radicals. O2-permeabilities of P = (13 ± 1)|
|Link to this record:||urn:nbn:de:bsz:291-scidok-25893|
|Date of registration:||28-Dec-2009|
|Faculty:||SE - Sonstige Einrichtungen|
|Department:||SE - INM Leibniz-Institut für Neue Materialien|
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