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5. Study of entangled network formation in concentrated solutions of polymer by <sup>13</sup&g

Study of entangled network formation in concentrated solutions of polymer by <sup>13</sup&g

来源 :中国科学：化学英文版 | 被引量 : 0次 | 上传用户：hdzj999

【摘 要】

：

Information about the exact location of topological and cohesional entanglements at molecular level has been obtained by 13C NMR relaxation analysis. The result

【作 者】

：

毛诗珍 倪少儒 杜有如 沈联芳 

【机 构】

：

LaboratoryofMagneticResonanceandAtomicandMolecularPhysics,ChineseAcademyofSciences,Wuhan430071,China

【出 处】

：

中国科学：化学英文版

【发表日期】

：

1996年2期

【关键词】

：

NMR RELAXATION ENTANGLEMENT POLYBUTADIENE biexponential. NMR  relaxation  entang 

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Information about the exact location of topological and cohesional entanglements at molecular level has been obtained by 13C NMR relaxation analysis. The results show that about 20% of the carbon atoms in the main chain are entangled in the 25% (by weight

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