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    • 5. 发明申请
    • Zwitterionic polymers
    • 两性离子聚合物
    • US20060183863A1
    • 2006-08-17
    • US11058330
    • 2005-02-14
    • Wenxi HuangSarah NgolaKamen Voivodov
    • Wenxi HuangSarah NgolaKamen Voivodov
    • C08L9/02
    • C08F220/38B01D15/364B01J20/264B01J20/3276B01J2220/54C08F220/36
    • Zwitterionic polymers bearing positive and negative charges are readily prepared from easily accessible precursors. The polymers show enhanced binding affinities for analytes under high salt conditions, compared to similar polymers bearing a charge of a single polarity. The polymers can also include an energy absorbing moiety for use in matrix assisted laser desorption/ionization mass spectrometry. The polymer can also include a photo-curable group, which can be used to form cross-links within the bulk polymer or between the polymer and a surface functionalized with a polymerizable moiety. The polymers are incorporated into devices of use for the analysis, capture, separation, or purification of an analyte. In an exemplary embodiment, the invention provides a substrate coated with a polymer of the invention, the substrate being adapted for use as a probe for a mass spectrometer.
    • 带有正电荷和负电荷的两性离子聚合物易于从容易获得的前体制备。 与具有单一极性电荷的类似聚合物相比,聚合物在高盐条件下显示出增强的分析物的结合亲和力。 聚合物还可以包括用于基质辅助激光解吸/电离质谱的能量吸收部分。 聚合物还可以包括可光固化基团,其可以用于在本体聚合物内形成交联,或者在聚合物与用可聚合部分官能化的表面之间形成交联。 将聚合物并入用于分析,捕获,分离或纯化分析物的装置中。 在一个示例性实施方案中,本发明提供涂覆有本发明的聚合物的基材,所述基材适于用作质谱仪的探针。
    • 6. 发明申请
    • Phthalate polymers
    • 邻苯二甲酸酯聚合物
    • US20060183242A1
    • 2006-08-17
    • US11057880
    • 2005-02-14
    • Wenxi HuangAaron ChenSarah NgolaKamen Voivodov
    • Wenxi HuangAaron ChenSarah NgolaKamen Voivodov
    • G01N31/22
    • B01J20/26B01J20/265B01J20/285B01J20/3265B01J2220/54C07K1/22
    • Polymers bearing metal chelating groups are readily prepared from easily accessible precursors. The polymers are readily converted to the corresponding metal chelates. The polymers can also include an energy absorbing moiety for use in matrix assisted laser desorption/ionization mass spectrometry. The polymer can also include a photo-curable group, which can be used to form cross-links within the bulk polymer or between the polymer and a surface functionalized with a polymerizable moiety. The polymers are incorporated into devices of use for the analysis, capture, separation, or purification of an analyte. In an exemplary embodiment, the invention provides a substrate coated with a polymer of the invention, the substrate being adapted for use as a probe for a mass spectrometer.
    • 具有金属螯合基团的聚合物可以容易地从容易获得的前体制备。 聚合物容易转化为相应的金属螯合物。 聚合物还可以包括用于基质辅助激光解吸/电离质谱法中的能量吸收部分。 聚合物还可以包括可光固化基团,其可以用于在本体聚合物内形成交联,或者在聚合物与用可聚合部分官能化的表面之间形成交联。 将聚合物并入用于分析,捕获,分离或纯化分析物的装置中。 在一个示例性实施方案中,本发明提供涂覆有本发明的聚合物的基材,所述基材适于用作质谱仪的探针。
    • 8. 发明授权
    • Soluble polyimide resin and process of preparation of the same
    • 可溶性聚酰亚胺树脂及其制备方法
    • US6031067A
    • 2000-02-29
    • US86387
    • 1998-05-29
    • Kil-Yeong ChoiMi-Hie YiWenxi Huang
    • Kil-Yeong ChoiMi-Hie YiWenxi Huang
    • C08G73/00C08G73/10C08G69/26
    • C08G73/10
    • The invention herein relates to a soluble polyimide resin and the process of preparation of the same, wherein aromatic tetracarboxylic dianhydride and aromatic diamine having an alicyclic group with various structures of substituted alkyl groups are used to yield a novel form of a polyimide resin, which has superior heat-resistance, solubility and transparency.More specifically, the invention herein relates to a novel polyimide resin having excellent heat-resistance and solubility, which is prepared by means of reacting aromatic diamine monomers having a novel chemical structure with various types of aromatic tetracarboxilic acid dianhydrides, in stead of aromatic diamine used for the preparation of the conventional polyimide resin. As a result, the polymers so obtained had the glass transition temperature of 250.degree. C..about.400.degree. C. and showed a increase in solubility in proportion to the increase in volume of the alkyl group. Further, the polymers herein showed superior solubility at room temperature in various types of organic solvents, e.g., THF.
    • 本发明涉及一种可溶性聚酰亚胺树脂及其制备方法,其中使用芳族四羧酸二酐和具有各种取代烷基结构的脂环族基团的芳族二胺以产生新型的聚酰亚胺树脂,其具有 优异的耐热性,溶解性和透明度。 更具体地说,本发明涉及具有优异的耐热性和溶解性的新型聚酰亚胺树脂,其通过使具有新型化学结构的芳族二胺单体与各种类型的芳族四羧酸二酐反应而制备,而不是使用芳族二胺 用于制备常规的聚酰亚胺树脂。 结果,如此获得的聚合物的玻璃化转变温度为250℃,差异为400℃,并且与烷基体积的增加成比例地显示出溶解度增加。 此外,本文的聚合物在各种类型的有机溶剂例如THF中在室温下表现出优异的溶解度。