Synthesis and characterization of a mechanically linked transformable polymer
作者： Daisuke Aoki , Satoshi Uchida , Toshikazu Takata
DOI: 10.1038/PJ.2014.22
关键词: Axle 、 Polymer 、 Isocyanate 、 Crown ether 、 Polymer chemistry 、 Polymerization 、 Solvent 、 Materials science 、 Rotaxane 、 Moiety
摘要: A shape-transformable polymer in which the wheel component can move freely along axle chain was synthesized and characterized. Rotaxane-linked linear poly(δ-valerolactone) one pot via ring-opening polymerization initiated by a sec-ammonium/crown ether–type pseudo[2]rotaxane that possessed two initiating hydroxyl groups on both components; this followed an end-capping reaction with bulky isocyanate. Acetylation of obtained to remove interaction between sec-ammonium crown ether afforded transformable polymer. The movement bearing confirmed weakening rotaxane-linked did not possess end-cap group. result clearly supported mobility graft from end polymeric other end. An effective synthetic method for developed introduction rotaxane structure into system. dibenzo-24-crown-8-ether key synthesis mechanically linked without desllipage during polymerization. After acetylation ammonium moiety, having able reach urethane linkage at ω-end non-polar solvent.
nature.com
sci-hub.se 参考文章(44)
Young-Gi Lee, Yasuhito Koyama, Morio Yonekawa, Toshikazu Takata, Synthesis of Main-Chain-Type Polyrotaxanes by New Click Polymerization Using Homoditopic Nitrile N-Oxides via Rotaxanation−Polymerization Protocol Macromolecules. ,vol. 43, pp. 4070- 4080 ,(2010) , 10.1021/MA100262G
Bo-Tao Dong, Yong-Quan Dong, Fu-Sheng Du, Zi-Chen Li, Controlling Polymer Topology by Atom Transfer Radical Self-Condensing Vinyl Polymerization of p-(2-Bromoisobutyloylmethyl)styrene Macromolecules. ,vol. 43, pp. 8790- 8798 ,(2010) , 10.1021/MA101807Y
Sadahito Aoshima, Shokyoku Kanaoka, A Renaissance in Living Cationic Polymerization Chemical Reviews. ,vol. 109, pp. 5245- 5287 ,(2009) , 10.1021/CR900225G
Caiguo Gong, Qing Ji, Chitra Subramaniam, Harry W. Gibson, Main Chain Polyrotaxanes by Threading Crown Ethers onto A Preformed Polyurethane: Preparation and Properties Macromolecules. ,vol. 31, pp. 1814- 1818 ,(1998) , 10.1021/MA9713116
Takashi Sato, Toshikazu Takata, Synthesis of Main-Chain-Type Polyrotaxane by Polymerization of Homoditopic [2]Rotaxane through Mizoroki−Heck Coupling Macromolecules. ,vol. 41, pp. 2739- 2742 ,(2008) , 10.1021/MA702515Z
Takashi Sato, Toshikazu Takata, Synthesis and Characterization of Poly[3]rotaxane through the Mizoroki-Heck Coupling Polymerization of Divinyl-functionalized [3]Rotaxane Polymer Journal. ,vol. 41, pp. 470- 476 ,(2009) , 10.1295/POLYMJ.PJ2008298
Gerhard Wenz, Bao-Hang Han, Axel Müller, Cyclodextrin rotaxanes and polyrotaxanes. Chemical Reviews. ,vol. 106, pp. 782- 817 ,(2006) , 10.1021/CR970027+
Maarten van den Boogaard, Guillaume Bonnet, Patrick van't Hof, You Wang, Cyril Brochon, Paul van Hutten, Alain Lapp, Georges Hadziioannou, Synthesis of Insulated Single-Chain Semiconducting Polymers Based on Polythiophene, Polyfluorene, and β-Cyclodextrin Chemistry of Materials. ,vol. 16, pp. 4383- 4385 ,(2004) , 10.1021/CM049665G
Huishi Wan, Yan Chen, Liang Chen, Xinyuan Zhu, Deyue Yan, Bin Li, Tao Liu, Ling Zhao, Xulin Jiang, Guangzhao Zhang, Supramolecular Control of the Branched Topology of Poly(sulfone-amine) from Divinylsulfone and Hexamethylenediamine Macromolecules. ,vol. 41, pp. 465- 470 ,(2008) , 10.1021/MA071149Z
Zhifeng Jia, Hao Chen, Xinyuan Zhu, Deyue Yan, Backbone-thermoresponsive hyperbranched polyethers. Journal of the American Chemical Society. ,vol. 128, pp. 8144- 8145 ,(2006) , 10.1021/JA062314D