Preparation of Nano/macro-porous Organic-inorganic Hybrid Materials
|School||Northeast Normal University|
|Course||Polymer Chemistry and Physics|
|Keywords||Organic - inorganic hybrid materials Satisfied / micron porous Proton exchange SiO2 opal template Non - surfactant template|
Porous material because of its special nature has a larger surface area , relatively low density , and in recent years has been more and more attention . Some porous material due to its special pore structure , controllable pore size and pore size distribution , good thermal and mechanical stability , and other special features to make it in the pharmaceutical, chemical , metallurgy , environmental protection , building materials , seawater desalination and many other areas have a broad application prospects . The paper mainly focuses on the preparation of ordered porous membrane , is divided into two main parts . First : in situ self-assembly method polyamic acid matrix the surfactant class template DBTA induction, preparation of ordered mesoporous SiO2 / poly imide hybrid self-supporting film, and the mechanism of its formation and the basic properties were studied . Second : To prepare filling a three-dimensional ordered macroporous organic - inorganic hybrid proton exchange membrane . SiO2 opal template formed by the size of the pH , NaCl concentration and other impact studies , the successful preparation of the micro - structure of the basic ordered larger than SiO2 opal template . 3D macroporous (3DOM) PI film SiO2 opal template preparation and proton exchange membrane was prepared by filling polyelectrolyte porous membrane to the the 3DOM structure of PI . These new satisfied / micron -scale organic - inorganic hybrid materials have potential applications in fuel cells , catalytic and low dielectric materials .