The effect of ionising radiation on poly(methyl methacrylate) used in intraocular lenses

被引：8
|
作者：
Pratt, C. M. [1 ]
Barton, S. [1 ]
McGonigle, E. [1 ]
Kishi, M. [1 ]
Foot, P. J. S. [1 ]
机构：
[1] Kingston Univ, Sch Chem & Pharmaceut Sci, Mat Res Grp, Kingston upon Thames KT1 2EE, Surrey, England
来源：
POLYMER DEGRADATION AND STABILITY | 2006年 / 91卷 / 10期
关键词：
PMMA; intraocular; sterilisation; irradiation; SEC; FT-IR;
D O I：
10.1016/j.polymdegradstab.2006.04.006
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Gamma radiation is increasingly being used to sterilise intraocular lenses (IOLs) made from poly(methyl methacrylate) (PNIMA). In this study, samples of PMMA used in the fabrication of IOLs were exposed to irradiation doses typically used for their sterilisation. The effect of this treatment on the polymer was analysed by size-exclusion chromatography (SEC), UV-visible and infrared spectroscopy and scanning electron microscopy (SEM). The PMMA was found to have undergone chain scission, decarboxylation and colour change following the irradiation. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2315 / 2317
页数：3
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