Microporous polyolefin-based aerogels
    64.
    发明授权
    Microporous polyolefin-based aerogels 有权
    微孔聚烯烃基气凝胶

    公开(公告)号:US09469739B2

    公开(公告)日:2016-10-18

    申请号:US14549946

    申请日:2014-11-21

    摘要: Microporous polyolefin and microporous polydicyclopentadiene (polyDCPD) based aerogels and methods for preparing and using the same are provided. The aerogels are produced by forming a polymer gel structure within a solvent from a olefin or dicyclopentadiene monomer via Ring Opening Metathesis Polymerization (ROMP) reactions, followed by supercritical drying to remove the solvent from the aerogel. Other aerogels are prepared by sequentially (1) mixing at least one dicyclopentadiene monomer, at least one solvent at least one catalyst and at least one inorganic and/or organic reinforcing material, (2) gelling the mixture, (3) aging, and (4) supercritical drying. Aerogels provided herein are inexpensive to prepare, possess desirable thermal, mechanical, acoustic, chemical, and physical properties and are hydrophobic. The aerogels provided herein are suitable for use in various applications, including but not limited to thermal and acoustic insulation, radiation shielding, and vibrational damping applications.

    摘要翻译: 提供微孔聚烯烃和微孔聚二环戊二烯(polyDCPD)为基础的气凝胶及其制备和使用方法。 通过开环复分解聚合(ROMP)反应在烯烃或二环戊二烯单体的溶剂中形成聚合物凝胶结构,然后通过超临界干燥从气凝胶中除去溶剂来生产气凝胶。 其它气凝胶通过顺序地(1)混合至少一种二环戊二烯单体,至少一种溶剂至少一种催化剂和至少一种无机和/或有机增强材料,(2)胶凝该混合物,(3)老化和( 4)超临界干燥。 本文提供的气凝胶制备成本低廉,具有期望的热,机械,声学,化学和物理性质并且是疏水性的。 本文提供的气凝胶适用于各种应用,包括但不限于热和隔音,辐射屏蔽和振动阻尼应用。

    Microporous polyolefin-based aerogels
    69.
    发明授权
    Microporous polyolefin-based aerogels 有权
    微孔聚烯烃基气凝胶

    公开(公告)号:US08921436B2

    公开(公告)日:2014-12-30

    申请号:US13896156

    申请日:2013-05-16

    摘要: Microporous polyolefin and microporous polydicyclopentadiene (polyDCPD) based aerogels and methods for preparing and using the same are provided. The aerogels are produced by forming a polymer gel structure within a solvent from a olefin or dicyclopentadiene monomer 5 via Ring Opening Metathesis Polymerization (ROMP) reactions, followed by supercritical drying to remove the solvent from the aerogel. Other aerogels are prepared by sequentially (1) mixing at least one dicyclopentadiene monomer, at least one solvent at least one catalyst and at least one inorganic and/or organic reinforcing material, (2) gelling the mixture, (3) aging, and (4) supercritical drying. Aerogels provided herein are inexpensive to prepare, possess desirable 10 thermal, mechanical, acoustic, chemical, and physical properties and are hydrophobic. The aerogels provided herein are suitable for use in various applications, including but not limited to thermal and acoustic insulation, radiation shielding, and vibrational damping applications.

    摘要翻译: 提供微孔聚烯烃和微孔聚二环戊二烯(polyDCPD)为基础的气凝胶及其制备和使用方法。 气凝胶是通过经由开环复分解聚合(ROMP)反应从烯烃或二环戊二烯单体5在溶剂中形成聚合物凝胶结构,然后通过超临界干燥从气凝胶中除去溶剂而制备的。 其它气凝胶通过顺序地(1)混合至少一种二环戊二烯单体,至少一种溶剂至少一种催化剂和至少一种无机和/或有机增强材料,(2)胶凝该混合物,(3)老化和( 4)超临界干燥。 本文提供的气凝胶制备成本低廉,具有期望的10种热,机械,声学,化学和物理性质并且是疏水性的。 本文提供的气凝胶适用于各种应用,包括但不限于热和隔音,辐射屏蔽和振动阻尼应用。

    POROUS CROSS-LINKED POLYIMIDE-UREA NETWORKS
    70.
    发明申请
    POROUS CROSS-LINKED POLYIMIDE-UREA NETWORKS 有权
    多孔交联聚酰胺网络

    公开(公告)号:US20140272358A1

    公开(公告)日:2014-09-18

    申请号:US13804546

    申请日:2013-03-14

    IPC分类号: C08G73/10 C08J9/00

    摘要: Porous cross-linked polyimide-urea networks are provided. The networks comprise a subunit comprising two anhydride end-capped polyamic acid oligomers in direct connection via a urea linkage. The oligomers (a) each comprise a repeating unit of a dianhydride and a diamine and a terminal anhydride group and (b) are formulated with 2 to 15 of the repeating units. The subunit was formed by reaction of the diamine and a diisocyanate to form a diamine-urea linkage-diamine group, followed by reaction of the diamine-urea linkage-diamine group with the dianhydride and the diamine to form the subunit. The subunit has been cross-linked via a cross-linking agent, comprising three or more amine groups, at a balanced stoichiometry of the amine groups to the terminal anhydride groups. The subunit has been chemically imidized to yield the porous cross-linked polyimide-urea network. Also provided are wet gels, aerogels, and thin films comprising the networks, and methods of making the networks.

    摘要翻译: 提供多孔交联聚酰亚胺 - 尿素网络。 网络包括通过尿素键直接连接的两个酸酐封端的聚酰胺酸低聚物的亚基。 低聚物(a)各自包含二酐和二胺和末端酐基团的重复单元,和(b)与2至15个重复单元配制。 通过二胺和二异氰酸酯的反应形成亚单位,形成二胺 - 脲键二胺基,然后使二胺 - 脲键 - 二胺基与二酐和二胺反应形成亚单位。 亚基已经通过交联剂交联,所述交联剂包含三个或更多个胺基团,所述交联剂以胺基团与末端酐基团的平衡化学计量比。 该亚基已被化学酰亚胺化以产生多孔交联的聚酰亚胺 - 尿素网络。 还提供了湿凝胶,气凝胶和包含网络的薄膜以及制造网络的方法。