| 摘要 |
A composite comprising a polysilamine having a repeating unit represented by the following formula Ä-N(R<1>)-A<1>-Si(R<2>)(R<3>)-B-Ün wherein R<1>, R<2> and R<3> are the same or different and each is a hydrogen atom or a lower alkyl group; A<1> is a lower alkylene group which may be substituted by a lower alkyl group, a group represented by the formula -A<2>-N(R<4>)-A<3>- or a group represented by the formula -A<2>-N(R<4>)-A<3>-N(R<5>)-A<4>-, wherein A<2>, A<3> and A<4> are the same or different and each is a lower alkylene group which may be substituted by a lower alkyl group; R<4> and R<5> are the same or different and each is a hydrogen atom or lower alkyl groups; B is a lower alkylene group which may be substituted by a lower alkyl group; and n is an integer of not less than 2, and a strong acid is disclosed. This composite has proton conductivity and is thus suitably used as an electrolyte membrane of a fuel cell. <IMAGE> |
