发明申请
- 专利标题: Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications
- 专利标题(中): 聚苯并咪唑化合物,聚合物介质和后聚合修饰方法
-
申请号: US10862921申请日: 2004-06-07
-
公开(公告)号: US20050272859A1公开(公告)日: 2005-12-08
- 发明人: John Klaehn , Eric Peterson , Alan Wertsching , Christopher Orme , Thomas Luther , Michael Jones
- 申请人: John Klaehn , Eric Peterson , Alan Wertsching , Christopher Orme , Thomas Luther , Michael Jones
- 主分类号: C08G63/02
- IPC分类号: C08G63/02 ; C08G69/48 ; C08G73/18 ; C08J3/00
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.