The invention provides a composition capable of providing a molded article that has excellent heat resistance and a small weight change against oxygen plasma exposure and fluorine plasma exposure during a semiconductor manufacturing step. The composition contains a fluorine-containing polymer and a hyperbranched polymer of a cage silsesquioxane with a specific structure.
Bestimmung von prim�ren und sekund�ren Aminen in Form von Amiden mit Hilfe der Gaschromatographie auf gepackten und Kapillar-S�ulen
作者:M. Pailer、W. J. H�bsch
DOI:10.1007/bf00901432
日期:——
COMPOSITION AND MOLDED ARTICLE
申请人:Akita University
公开号:EP3486283B1
公开(公告)日:2022-06-15
Unique<i>para</i>-effect in electron ionization mass spectra of bis(perfluoroacyl) derivatives of bifunctional aminobenzenes
作者:Kirill V. Tretyakov、Nino G. Todua、Roman S. Borisov、Vladimir G. Zaikin、Stephen E. Stein、Anzor I. Mikaia
DOI:10.1002/rcm.4661
日期:2010.9.15
intense peaks in the EI spectra. The composition and the origin of the [M–COR–NCR]+ ions were confirmed by exact mass measurements and linked scan experiments. The proposed mechanism of their formation takes into account likely para‐quinoid structures of the precursor ions. A similar rearrangement has not been observed for para‐isomers in the series of bis(perfluoroacyl) derivatives of benzenediols, mercaptophenols
一种新的“的对位下电子电离-效应”(EI)条件下,已经发现了一系列的双(全氟酰基)衍生物ø - ,米-和p苯二胺类,-hydroxybenzeneamines和公共结构的-mercaptobenzeneamines RCOX- C 6 H 4 -NHCOR(X = NH,S,O; R = CF 3,C 2 F 5,C 3 F 7)。只有对位异构体显示出自由基RCO •和分子RCN的连续损失,导致EI光谱中出现非常强烈的峰。[M–COR–NCR] +的组成和来源通过精确的质量测量和链接的扫描实验确认了离子。拟议的形成机理考虑了前体离子的可能的对醌型结构。苯二醇,巯基酚和二巯基苯的双(全氟酰基)衍生物系列中的对位异构体未观察到类似的重排。John Wiley&Sons,Ltd.在2010年出版。
The First 1,10-Diaza[2.2]metacyclophanes – Strained Medium Membered Heterocycles⋆
The N-protected 1,10-diaza[2.2]metacyclo- and 1,10-diaza-[2]metacyclo[2](2,6)-pyridinophanes 4 and 5 have been synthesized for the first time using high dilution conditions. The free secondary diamine 7 was obtained from 4 by alkaline hydrolysis. – Quantum chemical calculations support the hypothesis that 7 is one of the most strained anti-hetera[2.2]metacyclophanes known. This is also evident from