TP 6: Simultaneous Polymerization of Two or More Twin Monomers for Synthesis of Functionalized Pebble Gel Hybrid Materials (2. FP)
Project Manager: Prof. Dr. Stefan SpangeTU Chemnitz, Chair of Polymer Chemistry, Chemnitz
Project Goals:
The simultanous polymerization of two or more twin monomers for the synthesis of functionalized silica gel hybrid materials, combined with other metal oxides, should be developed as a new type of STP. Therefor, the organic fragments will be built up in a way that an alternating step growth by Friedel-Crafts polycondensation occurs. The conceptional approach provides a higher π-nucleophility of the organic component within TM 1 while at the same time the carbocation formation is prevented. However, the formation of resonance-stabilized carbocations, which result from TM 2, is supported. Here, the π-nucleophility of TM 2 should be much lower than of TM 1 (figure 1). TM 1 and TM 2 can contain different metals (B, Si, P, Ti) and therefore serve as a source for mixed oxide nanostructures.
| Figure 1: | Idea of alternating twin polymerization by using twin monomers with different para or meta substitution pattern of the polymerizable aromatic ring |
For this purpose the polymerization ability of new meta and para alkyl /methoxy substituted borate esters and silicon esters of benzyl alcohols should be studied.
Results:
>>> TP 6 of 1st Funding Period