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34 条记录 (耗时 0.041 秒)

    Thermally cleavable surfactants
    1.
    发明授权
    Thermally cleavable surfactants 失效
    可热切割的表面活性剂

    公开(公告)号：US07022861B1

    公开(公告)日：2006-04-04

    申请号：US10866475

    申请日：2004-06-10

    申请人： James R. McElhanon ,  Blake A. Simmons ,  Thomas Zifer ,  Gregory M. Jamison ,  Douglas A. Loy ,  Kamyar Rahimian ,  Timothy M. Long ,  David R. Wheeler ,  Chad L. Staiger

    发明人： James R. McElhanon ,  Blake A. Simmons ,  Thomas Zifer ,  Gregory M. Jamison ,  Douglas A. Loy ,  Kamyar Rahimian ,  Timothy M. Long ,  David R. Wheeler ,  Chad L. Staiger

    IPC分类号： C07D49/18 ,  C09K3/00

    CPC分类号： C07D491/18

    摘要： Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. The surfactants become soluble in water when anionic salts are formed through the deprotonation of the surfactant headgroups by the addition of potassium hydroxide. When either surfactant is exposed to temperature above about 60° C., the retro Diels-Alder reaction occurs, yielding hydrophilic and hydrophobic fragments and the aqueous solutions of the surfactants subsequently exhibit loss of all surface-active behavior.

    摘要翻译： 报道了两种新的表面活性剂分子，其中包含连接每个分子的极性和非极性部分的热不稳定的狄尔斯 - 阿尔德加合物。 两种表面活性剂具有相同的非极性十二烷基尾段，但表现出不同的极性头基。 当通过加入氢氧化钾通过表面活性剂头基的去质子化形成阴离子盐时，表面活性剂变得可溶于水。 当任何表面活性剂暴露于高于约60℃的温度时，发生复古Diels-Alder反应，产生亲水和疏水性片段，并且表面活性剂的水溶液随后表现出所有表面活性行为的损失。

    Thermally cleavable surfactants
    5.
    发明授权
    Thermally cleavable surfactants 有权
    可热切割的表面活性剂

    公开(公告)号：US07595349B1

    公开(公告)日：2009-09-29

    申请号：US11341409

    申请日：2006-01-26

    申请人： James R. McElhanon ,  Blake A. Simmons ,  Thomas Zifer ,  Gregory M. Jamison ,  Douglas A. Loy ,  Kamyar Rahimian ,  Timothy M. Long ,  David R. Wheeler ,  Chad L. Staiger

    发明人： James R. McElhanon ,  Blake A. Simmons ,  Thomas Zifer ,  Gregory M. Jamison ,  Douglas A. Loy ,  Kamyar Rahimian ,  Timothy M. Long ,  David R. Wheeler ,  Chad L. Staiger

    IPC分类号： B01F17/00 ,  C07D491/18

    CPC分类号： C07D491/18

    摘要： Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. The surfactants become soluble in water when anionic salts are formed through the deprotonation of the surfactant headgroups by the addition of potassium hydroxide. When either surfactant is exposed to temperature above about 60° C., the retro Diels-Alder reaction occurs, yielding hydrophilic and hydrophobic fragments or the aqueous solutions of the surfactants subsequently exhibit loss of all surface-active behavior.

    摘要翻译： 报道了两种新的表面活性剂分子，其中包含连接每个分子的极性和非极性部分的热不稳定的狄尔斯 - 阿尔德加合物。 两种表面活性剂具有相同的非极性十二烷基尾段，但表现出不同的极性头基。 当通过加入氢氧化钾通过表面活性剂头基的去质子化形成阴离子盐时，表面活性剂变得可溶于水。 当任何表面活性剂暴露于高于约60℃的温度时，发生复古Diels-Alder反应，产生亲水和疏水片段，或表面活性剂的水溶液随后表现出所有表面活性行为的损失。

    Metathesis depolymerizable surfactants
    6.
    发明授权
    Metathesis depolymerizable surfactants 有权
    复分解可表面活性剂

    公开(公告)号：US07358221B1

    公开(公告)日：2008-04-15

    申请号：US11475267

    申请日：2006-06-26

    申请人： Gregory M. Jamison ,  David R. Wheeler ,  Douglas A. Loy ,  Blake A. Simmons ,  Timothy M. Long ,  James R. McElhanon ,  Kamyar Rahimian ,  Chad L. Staiger

    发明人： Gregory M. Jamison ,  David R. Wheeler ,  Douglas A. Loy ,  Blake A. Simmons ,  Timothy M. Long ,  James R. McElhanon ,  Kamyar Rahimian ,  Chad L. Staiger

    IPC分类号： C11D3/37

    CPC分类号： C07C57/13

    摘要： A class of surfactant molecules whose structure includes regularly spaced unsaturation in the tail group and thus, can be readily decomposed by ring-closing metathesis, and particularly by the action of a transition metal catalyst, to form small molecule products. These small molecules are designed to have increased volatility and/or enhanced solubility as compared to the original surfactant molecule and are thus easily removed by solvent extraction or vacuum extraction at low temperature. By producing easily removable decomposition products, the surfactant molecules become particularly desirable as template structures for preparing meso- and microstructural materials with tailored properties.

    摘要翻译： 一类表面活性剂分子，其结构在尾组中包括规则间隔的不饱和键，因此可以容易地通过闭环复分解，特别是通过过渡金属催化剂的作用分解形成小分子产物。 这些小分子被设计为与原始表面活性剂分子相比具有增加的挥发性和/或增加的溶解度，因此通过在低温下的溶剂萃取或真空萃取容易地除去。 通过生产易于除去的分解产物，表面活性剂分子变得特别需要作为用于制备具有定制性质的中等和微结构材料的模板结构。

    Hybrid metal organic scintillator materials system and particle detector
    9.
    发明授权
    Hybrid metal organic scintillator materials system and particle detector 有权
    混合金属有机闪烁体材料体系和粒子检测器

    公开(公告)号：US07985868B1

    公开(公告)日：2011-07-26

    申请号：US11800136

    申请日：2007-05-04

    申请人： Christina A. Bauer ,  Mark D. Allendorf ,  F. Patrick Doty ,  Blake A. Simmons

    发明人： Christina A. Bauer ,  Mark D. Allendorf ,  F. Patrick Doty ,  Blake A. Simmons

    IPC分类号： C30B29/06

    CPC分类号： C09K11/04 ,  C09K11/06 ,  C09K2211/1408 ,  C09K2211/188

    摘要： We describe the preparation and characterization of two zinc hybrid luminescent structures based on the flexible and emissive linker molecule, trans-(4-R,4′-R′) stilbene, where R and R′ are mono- or poly-coordinating groups, which retain their luminescence within these solid materials. For example, reaction of trans-4,4′-stilbenedicarboxylic acid and zinc nitrate in the solvent dimethylformamide (DMF) yielded a dense 2-D network featuring zinc in both octahedral and tetrahedral coordination environments connected by trans-stilbene links. Similar reaction in diethylformamide (DEF) at higher temperatures resulted in a porous, 3-D framework structure consisting of two interpenetrating cubic lattices, each featuring basic to zinc carboxylate vertices joined by trans-stilbene, analogous to the isoreticular MOF (IRMOF) series. We demonstrate that the optical properties of both embodiments correlate directly with the local ligand environments observed in the crystal structures. We further demonstrate that these materials produce high luminescent response to proton radiation and high radiation tolerance relative to prior scintillators. These features can be used to create sophisticated scintillating detection sensors.

    摘要翻译： 我们描述了基于柔性和发射接头分子，反式（4-R，4'-R'）二苯乙烯的两种锌杂化发光结构的制备和表征，其中R和R'是单或多配位基团， 其在这些固体材料中保持其发光。 例如，反式-4,4'-二苯基二羧酸和硝酸锌在溶剂二甲基甲酰胺（DMF）中的反应产生了一个致密的2-D网络，其特征在于通过茋链接连接的八面体和四面体配位环境中的锌。 在较高温度下，在二乙基甲酰胺（DEF）中类似的反应产生了一个多孔的3-D骨架结构，其由两个相互贯穿的立方晶格组成，每个都具有与反式二苯乙烯连接的羧酸锌顶点碱基，类似于折射率MOF（IRMOF）系列。 我们证明两个实施方案的光学性质直接与在晶体结构中观察到的局部配体环境相关。 我们进一步证明这些材料相对于以前的闪烁体产生对质子辐射的高发光响应和高辐射耐受性。 这些功能可用于创建复杂的闪烁检测传感器。