Relationships between Microstructure and Crystalline Domain in Polyethylene series: A study by Nuclear Spin Relaxation Time Dispersion

• Main Authors: Yang Bor Sen, 楊柏森
• Other Authors: Peter P. J. Chu
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/35397784724160486768

碩士 === 國立中央大學 === 化學學系 === 83 === The microstructure, and morphology determined the physical pro- perties of polymers. For example, the difference in weight frac- tion crystalline,amorphous and the interfacial domains would produce polymer suitable forentirely different application. This methods are demonstrated in a series of polyethylene polymer of different commoner units from different catalysts systems and the molecular microstructure of each polymers are well characterized by solution NMR and IR.These results indicated that The results confirmed the novel NMR approach using relaxation dispersion can be a convenient and efficient tool for polymer which provide information not accessible through conventional tests for multipledomain polymer systems.