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Rheological, Thermal, and Morphological Properties of Low-Density Polyethylene/Ultra-High-Molecular-Weight Polyethylene and Linear Low-Density Polyethylene/Ultra-High-Molecular-Weight Polyethylene Blends, Journal of Applied Polymer Science, 2013,  129(3): 945-953, Yang Chen, Huawei Zou*, Mei Liang, Pengbo Liu