Alyanak H, Aksoy S, Hasirci N
Middle East Technical University, Faculty of Arts & Sciences, Department of Chemistry, Ankara, Turkey.
Int J Artif Organs. 1991 Feb;14(2):116-21.
The development of plastics with the optical properties of glass led promptly to their use as contact lenses and intra-ocular lenses to rectify certain visual defects. Research to improve these polymeric materials is continuous but there is not much in the literature since most of the findings are patented. In this work, polymethyl methacrylate, the most commonly used lens material was chosen as the base material and its co and terpolymers were prepared using 2-hydroxyethyl methacrylate, N-vinyl-2-pyrrolidinone, hexamethyl disiloxane, and polypropylene glycol. The transparency, refractive index, contact angle, density, equilibrium water content, and percent hydration properties were examined. Theoretical values were calculated for linear expansion and oxygen permeation from the density and hydration values.
具有玻璃光学特性的塑料的发展迅速促使其被用作隐形眼镜和人工晶状体来矫正某些视觉缺陷。改进这些聚合材料的研究一直在持续，但文献中相关内容不多，因为大多数研究结果都已申请专利。在这项工作中，选择了最常用的镜片材料聚甲基丙烯酸甲酯作为基础材料，并使用甲基丙烯酸2-羟乙酯、N-乙烯基-2-吡咯烷酮、六甲基二硅氧烷和聚丙二醇制备了其共聚物和三元共聚物。对透明度、折射率、接触角、密度、平衡含水量和水合百分比特性进行了研究。根据密度和水合值计算了线性膨胀和氧气透过率的理论值。
