Synthesis of MDI and PCL-diol-based polyurethanes containing [2] and [3]rotaxanes and their properties

  title={Synthesis of MDI and PCL-diol-based polyurethanes containing [2] and [3]rotaxanes and their properties},
  author={H. Murakami and Ryuta Nishiide and S. Ohira and Akiko Ogata},
Abstract We have successfully synthesized novel polyurethanes where PU1 contains a [3]rotaxane that consists of N -3,5-di- tert -butylbenzyl- N -3-hydroxypropylammonium hexafluorophosphate ( AOH1 ) and N , N′ -Dimethyl- N , N′ -bis(dibenzo-24-crown-8)-terephthalamide (BisC ) as well as PU2 contains a [2]rotaxane that consists of AOH1 and dibenzo-24-crown-8 ether. Diphenylmethanediisocyanate (MDI), 1,4-butanediol (BD) and poly( e -caprolactone)diol (PCL) were used as an isocyanate, chain… Expand

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