引用本文:
You Zhi WAN, Ying Hua LIU, Ping XIE, Rong Ben ZHANG. H-Bonding Self-assembled Template-directed Synthesis of a Reactive Amide-bridged Ladder Polyvinylsiloxane[J]. Chinese Chemical Letters,
2006, 17(10): 1361-1364.
Citation: You Zhi WAN, Ying Hua LIU, Ping XIE, Rong Ben ZHANG. H-Bonding Self-assembled Template-directed Synthesis of a Reactive Amide-bridged Ladder Polyvinylsiloxane[J]. Chinese Chemical Letters, 2006, 17(10): 1361-1364.
Citation: You Zhi WAN, Ying Hua LIU, Ping XIE, Rong Ben ZHANG. H-Bonding Self-assembled Template-directed Synthesis of a Reactive Amide-bridged Ladder Polyvinylsiloxane[J]. Chinese Chemical Letters, 2006, 17(10): 1361-1364.
H-Bonding Self-assembled Template-directed Synthesis of a Reactive Amide-bridged Ladder Polyvinylsiloxane
摘要:
A novel, reactive amide-bridged ladder polyvinylsiloxane (abbr. LP) with Mn=2.4×104 was synthesized for the first time by means of aryl amide H-bonding self-assembled template.The regularity of LP was characterized by the XRD, 29Si NMR and DSC methods. XRD analysis demonstrated the ladder width w=9.09Å and the ladder thickness t=3.89Å, respectively, which are approximately consistent with the molecular simulation-calculated ones:w'=10.60Å and t'=3.06Å. 29Si NMR displayed a resonance peak with small half peak width, △1/2~4 ppm, for the moiety[=Si(Vi)O2/2-]n of LP. Besides, as a collateral evidence, DSC measurement revealed a high glass transition temperature Tg=225℃, suggesting high stiffness of the ladder main chain of LP.
English
H-Bonding Self-assembled Template-directed Synthesis of a Reactive Amide-bridged Ladder Polyvinylsiloxane
Abstract:
A novel, reactive amide-bridged ladder polyvinylsiloxane (abbr. LP) with Mn=2.4×104 was synthesized for the first time by means of aryl amide H-bonding self-assembled template.The regularity of LP was characterized by the XRD, 29Si NMR and DSC methods. XRD analysis demonstrated the ladder width w=9.09Å and the ladder thickness t=3.89Å, respectively, which are approximately consistent with the molecular simulation-calculated ones:w'=10.60Å and t'=3.06Å. 29Si NMR displayed a resonance peak with small half peak width, △1/2~4 ppm, for the moiety[=Si(Vi)O2/2-]n of LP. Besides, as a collateral evidence, DSC measurement revealed a high glass transition temperature Tg=225℃, suggesting high stiffness of the ladder main chain of LP.
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