Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications
    1.
    发明申请
    Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications 有权
    聚苯并咪唑化合物,聚合物介质和后聚合修饰方法

    公开(公告)号:US20050272859A1

    公开(公告)日:2005-12-08

    申请号:US10862921

    申请日:2004-06-07

    摘要: A PBI compound includes imidazole nitrogens at least a portion of which are substituted with an organic-inorganic hybrid moiety. At least 85% of the imidazole nitrogens may be substituted. The organic-inorganic hybrid moiety may be an organosilane moiety, for example, (R)Me2SiCH2—where R is selected from among methyl, phenyl, vinyl, and allyl. The PBI compound may exhibit similar thermal properties in comparison to the unsubstituted PBI. The PBI compound may exhibit a solubility in an organic solvent greater than the solubility of the unsubstituted PBI. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may occur at about room temperature and/or at about atmospheric pressure. Substituting may use at least 5 equivalents in relation to the imidazole nitrogens to be substituted or, preferably, about 15.

    摘要翻译: PBI化合物包括至少一部分被有机 - 无机杂化部分取代的咪唑氮。 至少85%的咪唑氮可以被取代。 有机 - 无机杂化部分可以是有机硅烷部分,例如(R)Me 2 SiCH 2 - ,其中R选自甲基,苯基,乙烯基和 烯丙基。 与未取代的PBI相比,PBI化合物可以表现出相似的热性能。 PBI化合物可以在有机溶剂中表现出大于未取代的PBI的溶解度的溶解度。 PBI化合物可以包含在分离介质中。 取代的PBI合成方法可以包括在少于5重量%的溶剂溶液中提供亲本PBI。 在大约室温和/或大气压下可以进行取代。 取代的咪唑氮可以使用至少5当量,优选约15。

    Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications
    2.
    发明申请
    Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications 有权
    聚苯并咪唑化合物,聚合物介质和后聚合修饰方法

    公开(公告)号:US20050272880A1

    公开(公告)日:2005-12-08

    申请号:US10969456

    申请日:2004-10-19

    摘要: A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the carbonyl group. At least 85% of the nitrogens may be substituted. The carbonyl-containing moiety may include RCO—, where R is alkoxy or haloalkyl. The PBI compound may exhibit a first temperature marking an onset of weight loss corresponding to reversion of the substituted PBI that is less than a second temperature marking an onset of decomposition of an otherwise identical PBI compound without the substituted moiety. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may use more than 5 equivalents in relation to the imidazole nitrogens to be substituted.

    摘要翻译: PBI化合物包括其中至少一部分被含有羰基的部分取代的咪唑氮,取代的咪唑氮与羰基的碳键合。 至少85%的氮可被取代。 含羰基的部分可以包括RCO-,其中R是烷氧基或卤代烷基。 PBI化合物可以表现出第一温度,其标记了相应于取代的PBI的回复的重量开始的起始,该取代的PBI小于第二个温度,标记了没有取代部分的相同的PBI化合物的分解开始。 PBI化合物可以包含在分离介质中。 取代的PBI合成方法可以包括在少于5重量%的溶剂溶液中提供亲本PBI。 相对于被取代的咪唑氮可以使用超过5当量。

    PHOSPHAZENE MEMBRANES FOR GAS SEPARATIONS
    3.
    发明申请
    PHOSPHAZENE MEMBRANES FOR GAS SEPARATIONS 有权
    用于气体分离的PHOSPHAZENE膜

    公开(公告)号:US20060016331A1

    公开(公告)日:2006-01-26

    申请号:US10846195

    申请日:2004-05-13

    IPC分类号: B01D53/22

    CPC分类号: B01D71/76 B01D53/228

    摘要: A polyphosphazene having a glass transition temperature (“Tg”) of approximately −20° C. or less. The polyphosphazene has at least one pendant group attached to a backbone of the polyphosphazene, wherein the pendant group has no halogen atoms. In addition, no aromatic groups are attached to an oxygen atom that is bound to a phosphorus atom of the backbone. The polyphosphazene may have a Tg ranging from approximately −100° C. to approximately −20° C. The polyphosphazene may be selected from the group consisting of poly[bis-3-phenyl-1-propoxy) phosphazene], poly[bis-(2-phenyl-1-ethoxy)phosphazene], poly[bis-(dodecanoxypolyethoxy)phosphazene], and poly[bis-(2-(2-(2-ω-undecylenyloxyethoxy)ethoxy)ethoxy)phosphazene]. The polyphosphazene may be used in a separation membrane to selectively separate individual gases from a gas mixture, such as to separate polar gases from nonpolar gases in the gas mixture.

    摘要翻译: 具有约-20℃或更低的玻璃化转变温度(“T”g“)的聚磷腈。 聚磷腈具有至少一个与聚磷腈骨架连接的侧基,其中该侧基不具有卤素原子。 此外,没有芳族基团连接到与主链的磷原子结合的氧原子上。 聚磷腈可以具有约-100℃至约-20℃的范围。聚磷腈可以选自聚[双-3-苯基-1-丙氧基 )磷腈],聚[双 - (2-苯基-1-乙氧基)磷腈],聚[双 - (十二烷氧基聚乙氧基)磷腈]和聚[双 - (2-(2-(2-ω-十一烷基氧基乙氧基)乙氧基) 乙氧基)磷腈]。 聚磷腈可用于分离膜中,以选择性地将气体与气体混合物分离,例如将极性气体与气体混合物中的非极性气体分开。