Light stability of polymers (or photo-stability of polymers). Effect of sunlight.
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چکیده
منابع مشابه
Effect of Microencapsulation on Photo-Stability of Nifedipine
Nifedipine (NIF), a 1,4-dihydropyridine calcium channel antagonist, undergoes photo-degradation to dehydro-nifedipine (DNIF) upon exposure to ultraviolet (UV) light and to the nitroso analogue of dehydro-nifedipine (NDNIF) when exposed to sunlight or some kinds of artificial lights. NIF photo-degradation products do not contribute to clinical activity, thus prevention of photo-degradation of NI...
متن کاملEffect of Microencapsulation on Photo-Stability of Nifedipine
Nifedipine (NIF), a 1,4-dihydropyridine calcium channel antagonist, undergoes photo-degradation to dehydro-nifedipine (DNIF) upon exposure to ultraviolet (UV) light and to the nitroso analogue of dehydro-nifedipine (NDNIF) when exposed to sunlight or some kinds of artificial lights. NIF photo-degradation products do not contribute to clinical activity, thus prevention of photo-degradation of NI...
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In the first part of this paper, stability in the open air and ageing of plasma polymer films is concisely reviewed. Nanocomposite films metal/plasma polymer are shortly discussed. Their ageing is considered. Future work on more complex composites such as Sn or SnO2 /plasma polymer films is outlined.
متن کاملAlkaline Stability of Novel Aminated Polyphenylene-Based Polymers in Bipolar Membranes
This research investigated stability of two novel aminated polyphenylene polymers as anion exchange layers in bipolar membranes. Bipolar membrane stability was tested under operating conditions of 50 mA/cm2, and under conditions of soaking in room temperature 1 M NaOH. The stability of the custom made bipolar membranes was compared with those for two commercial membranes. For the polyphenylene-...
متن کاملeffect of oral presentation on development of l2 learners grammar
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
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ژورنال
عنوان ژورنال: Kobunshi
سال: 1988
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.37.612