Polyimide-co-polybenzoxazole copolymer, preparation method thereof, and gas separation membrane comprising the same
    1.
    发明授权
    Polyimide-co-polybenzoxazole copolymer, preparation method thereof, and gas separation membrane comprising the same 有权
    聚酰亚胺 - 共聚苯并恶唑共聚物,其制备方法和包含该聚合物的气体分离膜

    公开(公告)号:US08821617B2

    公开(公告)日:2014-09-02

    申请号:US12920268

    申请日:2008-03-06

    摘要: Disclosed herein are a polyimide-polybenzoxazole copolymer, a method for preparing thereof and a gas separation membrane comprising the same. More specifically, provided are a polyimide-polybenzoxazole copolymer simply prepared through thermal-rearrangement performed by thermally treating a polyimide-poly (hydroxyimide) copolymer as a precursor, a method for preparing the same, and a gas separation membrane comprising the same. The copolymer shows superior gas permeability and gas selectivity, thus being suitable for use in gas separation membranes in various forms such as films, fibers or hollow fibers. The gas separation membrane thus prepared can advantageously endure even harsh conditions such as long operation time acidic conditions and high humidity due to the rigid polymer backbone present in the copolymer.

    摘要翻译: 本文公开了聚酰亚胺 - 聚苯并恶唑共聚物,其制备方法和包含其的气体分离膜。 更具体地,提供了通过热处理作为前体的聚酰亚胺 - 聚(羟基酰亚胺)共聚物,其制备方法和包含该聚酰亚胺 - 聚(羟基酰亚胺)共聚物的前驱体的热重排简单制备的聚酰亚胺 - 聚苯并恶唑共聚物。 该共聚物具有优异的气体渗透性和气体选择性,因此适用于各种形式的气体分离膜,例如膜,纤维或中空纤维。 由此制备的气体分离膜可有利地承受由共聚物中存在的刚性聚合物骨架导致的恶劣条件,例如长时间的酸性条件和高湿度。

    Preparation method of polybenzimidazole
    2.
    发明授权
    Preparation method of polybenzimidazole 有权
    聚苯并咪唑的制备方法

    公开(公告)号:US08642722B2

    公开(公告)日:2014-02-04

    申请号:US12466499

    申请日:2009-05-15

    摘要: Disclosed is a method of preparing porous polybenzimidazole. The method includes providing polyaminoimide by reacting aromatic amine including at least two ortho-positioned amino groups and acid dianhydride, obtaining polypyrrolone from the polyaminoimide, subjecting the polypyrrolone to alkaline treatment, and subjecting the alkaline-treated polypyrrolone to heat treatment. The polybenzimidazole shows permeability and selectivity for various gases due to a fractional free volume and well-connected picopores.

    摘要翻译: 公开了一种制备多孔聚苯并咪唑的方法。 该方法包括通过使包含至少两个邻位氨基的酸性胺和酸二酐反应的芳族胺反应得到聚酰胺酰亚胺,从聚酰胺酰亚胺获得聚吡咯酮,对聚吡咯烷进行碱处理,并对碱处理的聚吡咯酮进行热处理。 由于分数自由体积和连接良好的皮孔,聚苯并咪唑显示出各种气体的渗透性和选择性。

    POLYIMIDE-CO-POLYBENZOXAZOLE COPOLYMER, PREPARATION METHOD THEREOF, AND GAS SEPARATION MEMBRANE COMPRISING THE SAME
    3.
    发明申请
    POLYIMIDE-CO-POLYBENZOXAZOLE COPOLYMER, PREPARATION METHOD THEREOF, AND GAS SEPARATION MEMBRANE COMPRISING THE SAME 有权
    聚酰亚胺 - 聚苯并噻唑共聚物,其制备方法和包含其的气体分离膜

    公开(公告)号:US20110065823A1

    公开(公告)日:2011-03-17

    申请号:US12920268

    申请日:2008-03-06

    IPC分类号: C08G73/10 C08J9/00

    摘要: Disclosed herein are a polyimide-polybenzoxazole copolymer, a method for preparing thereof and a gas separation membrane comprising the same. More specifically, provided are a polyimide-polybenzoxazole copolymer simply prepared through thermal-rearrangement performed by thermally treating a polyimide-poly (hydroxyimide) copolymer as a precursor, a method for preparing the same, and a gas separation membrane comprising the same. The copolymer shows superior gas permeability and gas selectivity, thus being suitable for use in gas separation membranes in various forms such as films, fibers or hollow fibers. The gas separation membrane thus prepared can advantageously endure even harsh conditions such as long operation time acidic conditions and high humidity due to the rigid polymer backbone present in the copolymer.

    摘要翻译: 本文公开了聚酰亚胺 - 聚苯并恶唑共聚物,其制备方法和包含其的气体分离膜。 更具体地,提供了通过热处理作为前体的聚酰亚胺 - 聚(羟基酰亚胺)共聚物,其制备方法和包含该聚酰亚胺 - 聚(羟基酰亚胺)共聚物的前驱体的热重排简单制备的聚酰亚胺 - 聚苯并恶唑共聚物。 该共聚物具有优异的气体渗透性和气体选择性,因此适用于各种形式的气体分离膜,例如膜,纤维或中空纤维。 由此制备的气体分离膜可有利地承受由共聚物中存在的刚性聚合物骨架导致的恶劣条件,例如长时间的酸性条件和高湿度。

    PREPARATION METHOD OF POLYBENZOXAZOLES BY THERMAL REARRANGEMENT, POLYBENZOXAZOLES PREPARED THEREBY, AND GAS SEPARATION MEMBRANE COMPRISING THE SAME
    5.
    发明申请
    PREPARATION METHOD OF POLYBENZOXAZOLES BY THERMAL REARRANGEMENT, POLYBENZOXAZOLES PREPARED THEREBY, AND GAS SEPARATION MEMBRANE COMPRISING THE SAME 有权
    通过热解制备聚苯并噻唑的制备方法,制备的聚苯并噻唑和包含其的气体分离膜

    公开(公告)号:US20110009506A1

    公开(公告)日:2011-01-13

    申请号:US12921980

    申请日:2008-03-13

    IPC分类号: C08G69/48 C08G69/08

    摘要: Disclosed herein are a method for preparing a benzoxazole-based polymer by thermal rearrangement, the benzoxazole-based polymer prepared by the method and a gas separation membrane comprising the polymer. More specifically, provided are a method for preparing a benzoxazole-based polymer by subjecting poly(hydroxyamide) as an intermediate to thermal treatment involving dehydration, the benzoxazole-based polymer obtained thereby and gas separation membrane comprising the polymer. The benzoxazole-based polymer of the present invention can be simply prepared by thermally rearrangement via thermal treatment at low temperatures, and thus exhibits superior mechanical and morphological properties and has well-connected microcavities. Due to showing excellent permeability and selectivity for various gases, the benzoxazole-based polymer is suited for application to gas separation membranes, in particular, gas separation membranes for small gases.

    摘要翻译: 本文公开了通过热重排制备苯并恶唑类聚合物的方法,通过该方法制备的苯并恶唑类聚合物和包含聚合物的气体分离膜。 更具体地说,提供了通过使作为中间体的聚(羟基酰胺)作为中间体进行脱水的热处理,由此获得的苯并恶唑类聚合物和包含该聚合物的气体分离膜来制备苯并恶唑类聚合物的方法。 本发明的苯并恶唑类聚合物可以通过在低温下热处理的热重排简单地制备,因此表现出优异的机械和形态特性,并具有良好连接的微腔。 由于显示出优异的各种气体的渗透性和选择性,所以基于苯并恶唑的聚合物适用于气体分离膜,特别是用于小气体的气体分离膜。

    Polymer compounds and a preparation method thereof
    7.
    发明授权
    Polymer compounds and a preparation method thereof 有权
    高分子化合物及其制备方法

    公开(公告)号:US08487064B2

    公开(公告)日:2013-07-16

    申请号:US13112586

    申请日:2011-05-20

    IPC分类号: C08G73/22 C08G73/06 C08G73/18

    CPC分类号: C08F214/18

    摘要: Disclosed herein are polymer compounds and a method for preparing thereof. More specifically, provided are polymer compounds with well-connected, narrow size distribution free-volume element and a method for preparing the polymer compounds by thermal rearrangement for aromatic polyimides containing ortho-positioned functional groups in the solid state.

    摘要翻译: 本文公开了聚合物化合物及其制备方法。 更具体地,提供具有良好连接的窄尺寸分布自由体积元素的聚合物化合物以及通过热重排制备含有固态的邻位官能团的芳族聚酰亚胺的聚合物化合物的方法。