Abstract : positron spectroscopy is a new and sensitive microanalytical probe for characterization of polymer microstructures . we report recent advances in this area , including studies on the free volume properties , structural transition , miscibility of blending polymers , physical aging , doping of functional polymers , interfacial interaction of multiphase polymers , etc 文摘:簡要介紹了近年來正電子譜學(xué)在聚合物微結(jié)構(gòu)研究中的主要應(yīng)用及進展.大量實驗事實表明,正電子譜學(xué)是表征高聚物微結(jié)構(gòu)的極靈敏方法