CONTAMINANT REMEDIATION WITH FUNCTIONALIZED (METH)ACRYLIC POLYMER OR COPOLYMER MACROPARTICULATES AND SYSTEMS RELATED THERETO

    公开(公告)号:WO2021007441A1

    公开(公告)日:2021-01-14

    申请号:PCT/US2020/041417

    申请日:2020-07-09

    Abstract: Macroparticulates may be formed through at least partial self-assembly by reacting an epoxide-containing (meth)acrylic polymer or copolymer with a compound bearing a nitrogen nucleophile. An internal cavity may be formed when functionalizing the (meth)acrylic polymer or copolymer in the presence of a hindered amine base. When appropriately functionalized, the macroparticulates may be used to sequester a contaminant from a substance in need of contaminant remediation, such as produced water or flowback water from a wellbore job site. Reclaimed water obtained from the macroparticulates may be utilized to form a treatment fluid. The macroparticulates may be located within a continuous flow line, particularly within a removable cartridge, to promote removal of at least one contaminant from a substance in need of contaminant remediation. The substance in need of contaminant remediation and/or the macroparticulates may be visually or spectroscopically interrogated to determine whether the macroparticulates have become saturated with contaminant.

    ASPHALTENE DISPERSANTS
    83.
    发明申请

    公开(公告)号:WO2020257747A1

    公开(公告)日:2020-12-24

    申请号:PCT/US2020/038871

    申请日:2020-06-22

    Abstract: The present disclosure relates to compositions and methods for prevent the formation of and disperse aggregates and other poorly soluble materials in hydrocarbon fluids. The compositions include an asphaltene dispersant prepared from the reaction of a polyethyleneimine (PEI) dendrimer and one or more derivatizing reagents wherein the polyethylene dendrimer has a weight average molecular weight of greater than or equal to 9 kDa. The methods include emplacing in a wellbore a composition comprising an asphaltene inhibitor, wherein the asphaltene inhibitor is a compound prepared from the reaction of a polyethyleneimine dendrimer and one or more derivatizing reagents wherein the polyethylene dendrimer has a weight average molecular weight of greater than or equal to 9 kDa.

    一种聚苯胺导电薄膜
    84.
    发明申请

    公开(公告)号:WO2019210685A1

    公开(公告)日:2019-11-07

    申请号:PCT/CN2018/118796

    申请日:2018-11-30

    Inventor: 顾黎明

    Abstract: 本发明公开了一种聚苯胺导电薄膜,它是由下述重量份的原料制成的:硬脂酸3-4份、苯胺120-140份、引发剂3-5份、十二烷基硫醇1-2份、掺杂剂1-2份、三丁基三氯化锡0.3-0.5份、溶剂170-200份、叔丁基对二苯酚0.8-1份、轻质碳酸钙6-8份、聚四氟乙烯蜡2-3份、硅烷偶联剂kh560 0.7-1份。本发明在苯胺聚合过程中引入了酸掺杂剂,能够有效地提高聚苯胺成品的导电稳定性,同时加入的叔丁基对二苯酚则能够提高聚苯胺导电薄膜的贮存稳定性。

    一种封闭剂水凝胶及其试剂盒和制备方法

    公开(公告)号:WO2019114108A1

    公开(公告)日:2019-06-20

    申请号:PCT/CN2018/074332

    申请日:2018-01-26

    Applicant: 沈伟

    Inventor: 沈伟 伍国琳 单萌

    Abstract: 一种封闭剂水凝胶及其试剂盒和制备方法,所述封闭剂水凝胶,通过包括以下组分的原料制备而成:第一组分是亲电性原料;第二组分是亲核性原料;第三组分是生物粘附性原料,所述第三组分包括四臂聚乙二醇多巴胺;第四组分是生理稀释剂,包含pH7.5-12.5的碱性缓冲液和pH2.0-6.5的酸性缓冲液。该封闭剂水凝胶在普通双组份水凝胶的基础上,添加一种经化学改性的聚乙二醇大分子单体,使用时经过混合后在原位快速生成具有一定粘附力的水凝胶。所生成的水凝胶具有良好的生物相容性、生物粘附性、可生物降解性、降解性能可调节,且其凝胶化时间大大缩短,凝胶含量和溶胀率等重要指标都有大幅的提高,降解速度可根据应用场合的需要进行调节。

    一种聚合物的调控改性方法
    90.
    发明申请

    公开(公告)号:WO2018098869A1

    公开(公告)日:2018-06-07

    申请号:PCT/CN2016/111646

    申请日:2016-12-23

    Abstract: 一种聚合物的调控改性方法,属于高聚合物材料领域。向聚合物的加成聚合反应体系中加入添加材料,利用添加材料改变聚合物交联度、加强或者弱化聚合物交联结构,对聚合物分子的空间结构进行约束或者解放,从而实现对聚合物性能的调节或者改变,所述聚合物的加成聚合反应体系以Pt催化剂催化聚合物单体发生亲核加成反应,添加材料为具有有机胺基团的高分子、或者为具有含硫官能团的高分子、或者具有氮孤电子对的高分子、或者具有电负性极强以能发生亲核反应的官能团的高分子。本方法将难以控制的化学分子层面上的交联变为可控制的交联,能按照预期对加成聚合的高分子材料进行调节改性。

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