The photocopolymer rod of ethyleneglycol dimethacrylate with methylmethacrylate
作者:
Jui‐Hsiang Liu,
Jenn‐Hwa Wang,
Ming‐Huei Chu,
期刊:
Die Angewandte Makromolekulare Chemie
(WILEY Available online 1990)
卷期:
Volume 174,
issue 1
页码: 1-10
ISSN:0003-3146
年代: 1990
DOI:10.1002/apmc.1990.051740101
出版商: Hüthig&Wepf Verlag
数据来源: WILEY
摘要:
AbstractThe photocopolymerization of ethyleneglycol dimethacrylate (EGDMA) with methylmethacrylate (MMA) containing benzoin methyl ether (BME) as initiator was carried out in a glass tube to fabricate a light‐focusing plastic rod (radius Rp) with a parabolic refractive index distribution (distribution constant A) in the region near the center axis (radius Rc). The dependence of A and Rc/Rpon MMA/EGDMA feed ratio, influence of BME concentration on the refractive index distribution, and the reproducibilities of the photopolymerizations were investigated. The Rc/Rpincreased with the feed ratio used under BME = 1.0 wt.‐% at velocity of UV lamp V = 0.58 mm/min. On the other hand, Rc/Rpincreased with the feed ratio to 0.2 and then decreased remarkably with the feed ratio in the range of 0.2–0.25 with BME = 0.6 wt.‐% at V = 0.735 mm/min. Plastic rods fabricated in the investigation using photopolymerization have lens characteristics and good reproducib
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