Abstract
AbstractA novel polyorganosiloxane having a bigger sized tubular structure, tubular polymer (TP) was synthesized successfully by hydrosilylation reaction of reactive cis‐isotactic ladder‐like polyallylsilsesquioxane (Allyl‐T) with coupling agent p‐bis(dimethylhydrogensilyl)oxydiphenylene (M) in the presence of dicyclopentadienylplatinum(II) chloride (Cp2PtCl2) catalyst. A novel supramolecular TP clathrate (TP/LC) was prepared by in situ encapsulating rod‐like liquid crystalline molecule within the pore of TP. The Allyl‐T was prepared by stepwise coupling polymerization. Various characterization methods including solubility test, FT‐IR, 1H‐NMR, differential scanning calorimetry (DSC), gel permeation chromatography (GPC), vapour pressure osmometer (VPO), X‐ray diffraction (XRD), atomic force microscopy (AFM), polarized optical microscopy (POM) and molecular simulation were used and the results not only proved the existence of nano‐scale tubular structures in the TP, but also demonstrated that a novel soluble supramolecular clathrate had been formed. Copyright © 2002 John Wiley & Sons, Ltd.
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