1999
DOI: 10.1080/10587259908025574
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Characterization of (Perfluorodecyl) n-Alkanes, F(CF2)10(CH2) m H

Abstract: 1059 Bulletin des médecins suisses | Schweizerische Ärztezeitung | Bollettino dei medici svizzeri | 2013;94: 27/28 Au solstice d'été, les Chambres fédérales ont décidé de réin-troduire le gel des admissions pour les médecins. En vigueur depuis le 1 er juillet 2013, cette mesure urgente ne devrait être appliquée que trois ans. C'est cependant la qua-trième fois en onze ans qu'une telle mesure nous est annoncée p our une période «temporaire de trois ans». En 2002, 2005 et 2008, plutôt que de proposer une solutio… Show more

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Cited by 6 publications
(5 citation statements)
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“…M2 was regarded as a tilted smectic phase, possibly a smectic G phase. No liquid crystalline properties or mesophase transitions were found for F 10 Hm compounds with 2 ≤ m ≤ 5 and 13 ≤ m ≤ 19 .…”
Section: Solid State: Structural Transitions and Liquid Crystal Behaviormentioning
confidence: 93%
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“…M2 was regarded as a tilted smectic phase, possibly a smectic G phase. No liquid crystalline properties or mesophase transitions were found for F 10 Hm compounds with 2 ≤ m ≤ 5 and 13 ≤ m ≤ 19 .…”
Section: Solid State: Structural Transitions and Liquid Crystal Behaviormentioning
confidence: 93%
“…No liquid crystalline properties or mesophase transitions were found for F10Hm compounds with 2 e m e 5 and 13 e m e 19. 257 F10H5 exhibited a sharp reflection in the small-angle region of the X-ray pattern, characteristic of crystal packing. 259 The WAXD pattern of diblocks with m g 13 showed increased disorder in their molecular orientation.…”
Section: The F10hm Seriesmentioning
confidence: 99%
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“…The thermal behavior and mesophase structure of related linear diblocks C n F 2 n +1 C m H 2 m +1 , FnHm , have been extensively investigated. ,,, They were found to exhibit a variable number of mesophase transitions, reflecting the various degrees of ordering of the Fn and Hm segments before complete clearing in the isotropic liquid, with the latter event being dominated by the complete breakdown of the regular Fn block packing (at temperature T F ). Numerous different dense layered arrangements that minimize the contact between the two types of chains have been suggested and discussed in the literature both below and above the main phase transition (parallel and antiparallel chains, tilt, interdigitation, cylinders, ribbons, double-layered undulating lamellae, and herringbone arrangements). , In spite of extensive investigations, however, no general clear and unambiguous picture of the molecular organization of FnHm diblocks in their various phases has yet emerged.…”
Section: Introductionmentioning
confidence: 99%