A RUBBER COMPOSITION SUITABLE FOR USE AS A CAP PLY IN A TIRE
申请人:Bridgestone Americas Tire Operations, LLC
公开号:EP2665771A2
公开(公告)日:2013-11-27
[EN] A RUBBER COMPOSITION SUITABLE FOR USE AS A CAP PLY IN A TIRE<br/>[FR] COMPOSITION DE CAOUTCHOUC APPROPRIÉE POUR ÊTRE UTILISÉE COMME NAPPE DE SOMMET DANS UN PNEU
申请人:BRIDGESTONE AMERICAS TIRE
公开号:WO2012099955A2
公开(公告)日:2012-07-26
Disclosed is a rubber composition suitable for use as a cap ply rubber composition. The rubber composition comprises: (a) at least one natural or synthetic rubbery polymer; (b) from 0.1 to 20 phr of at least one hydrazide compound; (c) from 0.1 to 10 phr of at least one methylene donor; (d) from 0.1 to 10 phr of at least one methylene acceptor resin; and (e) from 0.1 to 10 phr of zinc oxide. A method of making the same is also disclosed.
“Naked-eye” detection of inorganic fluoride ion in aqueous media using base labile proton: A different approach
作者:Madhuprasad Kigga、Darshak R. Trivedi
DOI:10.1016/j.jfluchem.2014.01.009
日期:2014.4
followed by stabilization of complex through intramolecular charge transfer (ICT) transition which was evidenced by the formation of HF2 peak in 1H NMR titration. The color change of receptor R2 involves initial hydrogen bond formation of F− ion with –NH group and deprotonation at higher concentration of F− ions which leads to intramolecular charge transfer transition in organic media. On the other hand, in
两个新的受体R1和R2被设计和基于1-naphthohydrazide席夫碱为氟离子的比色检测合成。受体R1是朝向上方在有机介质中的其它阴离子氟离子选择。羰基的在1- naphthohydrazide存在使得-NH质子酸性,因此它可以与添加碱性阴离子如氟离子去质子化。然而,酸性 - NH质子容易被即使有水的微量溶剂化。可选地,受体R2,包括高度碱不稳定,羟基(-OH)的功能,其检测不仅在有机溶液中,而且在水性介质中通过去质子化机制碱性氟化物离子。2在峰1个1 H NMR滴定。受体R2的颜色变化涉及的F初始氢键形成-以F的较高浓度的离子与-NH基团脱质子化和-离子,其导致在有机介质中的分子内电荷转移过渡。在另一方面,在受体R2,加入碱性氟化物离子导致碱的去质子化不稳定的羟基(-OH)质子,这是负责比色检测的水溶液。