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- W1993388274 abstract "Thin films of ethyl polyhedral oligomeric silsesquioxane (ethyl-POSS) containing polymers at different compositions were chemically modified using laser irradiation at 157 nm. The irradiation caused photodissociation of C–O and C–H bonds followed by the formation of new chemical bonds. The content of Si–O and C–O bonds increased, as did the surface hardness. Vacuum ultraviolet (VUV) absorption, mass spectrometry, x-ray photoelectron spectroscopy, and atomic force microscopy imaging and indentation were used to evaluate the effects of the 157 nm irradiation. The chemical modification was restricted to a thin surface layer. The layer depth was determined by the penetration depth of the 157 nm VUV photons inside the thin copolymer layer. With prolonged VUV irradiation, the absorbance of the polymers increased, eventually becoming saturated. The chemical changes were accompanied by surface hardening, as evidenced by the increase in the Young’s modulus from 4 to 24 GPa due to glassification of the irradiated parts. The chemically modified layer acts as a shield against photodissociation and degradation of the deeper portion of the POSS polymer by VUV radiation. Applications include the protection of solar cells on low orbit satellites from solar VUV photons." @default.
- W1993388274 created "2016-06-24" @default.
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- W1993388274 date "2009-06-01" @default.
- W1993388274 modified "2023-10-07" @default.
- W1993388274 title "Surface modification of polyhedral oligomeric silsesquioxane block copolymer films by 157 nm laser light" @default.
- W1993388274 cites W1546495144 @default.
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- W1993388274 cites W1963721573 @default.
- W1993388274 cites W1966781173 @default.
- W1993388274 cites W1967588168 @default.
- W1993388274 cites W1968386492 @default.
- W1993388274 cites W1973763809 @default.
- W1993388274 cites W1975960568 @default.
- W1993388274 cites W1977862640 @default.
- W1993388274 cites W1978530788 @default.
- W1993388274 cites W1980220731 @default.
- W1993388274 cites W1983049758 @default.
- W1993388274 cites W1983959053 @default.
- W1993388274 cites W1984640540 @default.
- W1993388274 cites W1988981815 @default.
- W1993388274 cites W1989140644 @default.
- W1993388274 cites W1991822325 @default.
- W1993388274 cites W1995353523 @default.
- W1993388274 cites W2002558344 @default.
- W1993388274 cites W2008783438 @default.
- W1993388274 cites W2009738754 @default.
- W1993388274 cites W2010074295 @default.
- W1993388274 cites W2010151151 @default.
- W1993388274 cites W2016181546 @default.
- W1993388274 cites W2016201524 @default.
- W1993388274 cites W2016374341 @default.
- W1993388274 cites W2017882499 @default.
- W1993388274 cites W2018034036 @default.
- W1993388274 cites W2021306412 @default.
- W1993388274 cites W2021379166 @default.
- W1993388274 cites W2033578038 @default.
- W1993388274 cites W2034344418 @default.
- W1993388274 cites W2035288536 @default.
- W1993388274 cites W2036392990 @default.
- W1993388274 cites W2037032126 @default.
- W1993388274 cites W2037624463 @default.
- W1993388274 cites W2037746284 @default.
- W1993388274 cites W2038623052 @default.
- W1993388274 cites W2039683106 @default.
- W1993388274 cites W2044650955 @default.
- W1993388274 cites W2045085665 @default.
- W1993388274 cites W2046146457 @default.
- W1993388274 cites W2048022756 @default.
- W1993388274 cites W2049351520 @default.
- W1993388274 cites W2052090420 @default.
- W1993388274 cites W2059065717 @default.
- W1993388274 cites W2069250998 @default.
- W1993388274 cites W2071763839 @default.
- W1993388274 cites W2072029302 @default.
- W1993388274 cites W2072645698 @default.
- W1993388274 cites W2073027875 @default.
- W1993388274 cites W2073677406 @default.
- W1993388274 cites W2073760755 @default.
- W1993388274 cites W2076223058 @default.
- W1993388274 cites W2076884488 @default.
- W1993388274 cites W2078569086 @default.
- W1993388274 cites W2079491970 @default.
- W1993388274 cites W2080004128 @default.
- W1993388274 cites W2081381811 @default.
- W1993388274 cites W2087918410 @default.
- W1993388274 cites W2091768548 @default.
- W1993388274 cites W2092930762 @default.
- W1993388274 cites W2096412075 @default.
- W1993388274 cites W2106441589 @default.
- W1993388274 cites W2127643785 @default.
- W1993388274 cites W2130987015 @default.
- W1993388274 cites W2134410006 @default.
- W1993388274 cites W2137148917 @default.
- W1993388274 cites W2147036919 @default.
- W1993388274 cites W2155436475 @default.
- W1993388274 cites W2157510842 @default.
- W1993388274 cites W2164618095 @default.
- W1993388274 cites W2171694650 @default.
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- W1993388274 doi "https://doi.org/10.1063/1.3131822" @default.
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