NANOMODIFIED BACKBONES FOR POLYIMIDES WITH DIFUNCTIONAL AND MIXED-FUNCTIONALITY ENDCAPS
    34.
    发明申请
    NANOMODIFIED BACKBONES FOR POLYIMIDES WITH DIFUNCTIONAL AND MIXED-FUNCTIONALITY ENDCAPS 有权
    具有功能和混合功能性末端的聚酰胺的纳米化反应

    公开(公告)号:US20160060400A1

    公开(公告)日:2016-03-03

    申请号:US14473169

    申请日:2014-08-29

    CPC classification number: C08G77/388 C08G73/101 C08G73/1014 C08L79/08

    Abstract: Polyimides containing a backbone with at least one nanoparticle component and made from oligomers having endcaps that are difunctional or a mix of di- and monofunctionality are provided. The endcaps may be nadic or phenylethynyl. The backbone may be wholly inorganic or made from a mixture of inorganic and organic groups. The oligomers may be created in-situ using standard polymerization of monomeric reactants chemistry using a solvent or may be provided as a pre-imidized compound that may be either a solid or liquid. It is believed that the nanoparticle component of the polymer backbone provides superior thermo-oxidative stability verses unmodified organic backbones. It is further believed that providing difunctional or a mixture of di- and monofunctional endcaps allows for increased crosslinking to provide improved strength and stiffness verses wholly monofunctional endcapped oligomers for polyimides. The nanoparticle is part of the backbone of the polymer and not solely a pendant group.

    Abstract translation: 提供含有具有至少一个纳米颗粒组分并由具有双官能的端帽或具有二官能度和单官能团的混合物的寡聚物制成的骨架的聚酰亚胺。 端帽可以是天然或苯基乙炔基。 骨架可以是完全无机的或由无机和有机基团的混合物制成。 可以使用溶剂的单体反应物化学的标准聚合原位产生低聚物,或者可以提供为可以是固体或液体的预酰亚胺化化合物。 据信聚合物骨架的纳米颗粒组分提供了与未改性的有机骨架相当的优异的热氧化稳定性。 进一步认为,提供二官能或双官能末端封端的混合物允许增加交联以提供改进的强度和刚度与聚酰亚胺的全部单官能封端的低聚物。 纳米颗粒是聚合物骨架的一部分,而不仅仅是侧基。

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