Free radical adducts of fullerenes with hydrocarbons and polymers
    1.
    发明授权
    Free radical adducts of fullerenes with hydrocarbons and polymers 失效
    富勒烯与碳氢化合物和聚合物的自由基加成物

    公开(公告)号:US5462680A

    公开(公告)日:1995-10-31

    申请号:US229510

    申请日:1994-04-19

    摘要: This invention relates to novel compositions of matter comprising free radical adducts of a fullerene with one or more saturated hydrocarbons having a number average molecular weight ranging from about 200 to about ten million. Attachment of saturated hydrocarbons to as many as fourteen sites on the fullerene surface can be achieved via free radical initiated reactions. Fullerenes also add to saturated hydrocarbons with functional groups selected from the group consisting of hydroxy, carboxy, and carboalkoxy radicals in the presence of a free radical initiator. Said radical adducts of substantially saturated hydrocarbons with fullerenes react further with alkylamines and polyamines to produce new compositions. The radical adducts, and their aminated derivatives are useful as dispersants and viscosity modifiers in lubricants. In the presence of free radical initiators, said fullerenes can also crosslink substantially saturated polymers having number average molecular weight ranging from about 50,000 to about 500,000. The crosslinked polymers, are useful as new membranes and composites.

    摘要翻译: 本发明涉及包含富勒烯与一种或多种数均分子量为约200至约1000万的饱和烃的自由基加成物的新物质组合物。 通过自由基引发的反应可以将饱和烃连接到富勒烯表面上多达14个位点。 在自由基引发剂的存在下,富勒烯还加入选自羟基,羧基和烷氧羰基的官能团的饱和烃。 基本上饱和的烃与富勒烯的自由基加成物与烷基胺和多胺进一步反应以产生新的组合物。 自由基加合物及其胺化衍生物可用作润滑剂中的分散剂和粘度调节剂。 在存在自由基引发剂的情况下,所述富勒烯还可交联数均分子量范围为约50,000至约500,000的基本上饱和的聚合物。 交联聚合物可用作新膜和复合材料。

    Method for quantitatively determining the amount of saturates, olefins,
and aromatics in a mixture thereof
    2.
    发明授权
    Method for quantitatively determining the amount of saturates, olefins, and aromatics in a mixture thereof 失效
    用于定量测定其混合物中饱和物,烯烃和芳族化合物的量的方法

    公开(公告)号:US5190882A

    公开(公告)日:1993-03-02

    申请号:US817217

    申请日:1992-01-06

    摘要: A quantitative method including separating a mixture of olefins, aromatics, and saturates by supercritical fluid chromatography to obtain an eluent stream that over a first time period contains a mixture of olefins and saturates, and over a second time period contains aromatics, and passing the eluent first to an ultraviolet absorption detector (UV). Importantly, the eluent is irradiated in the UV detector at a wavelength capable of producing an ultraviolet absorbance response of olefins that is independent of specific olefins present, and preferably is substantially similar to a mass detector response for olefins. From a combination of UV and mass response, the mass of the olefins in the mixture of olefins and saturates can be determined. Thereafter, the eluent is passed to a mass detector whereby the mass of the mixture of saturates and olefins is determined and then the mass of the aromatics is determined.

    摘要翻译: 一种定量方法,包括通过超临界流体色谱分离烯烃,芳族化合物和饱和物的混合物以获得在第一时间段内含有烯烃和饱和物的混合物的洗脱剂流,并且在第二时间段内含有芳族化合物并通过洗脱剂 首先是紫外线吸收检测器(UV)。 重要的是,洗脱液在UV检测器中以能够产生与存在的特定烯烃无关的烯烃的紫外吸收响应的波长照射,优选基本上类似于烯烃的质量检测器响应。 从UV和质量响应的组合可以确定烯烃和饱和物混合物中烯烃的质量。 此后,将洗脱液通入质量检测器,由此确定饱和物和烯烃的混合物的质量,然后确定芳族化合物的质量。