Marega Carla, Malizia Federica, Spataro Stefano
Department of Chemical Sciences, via Marzolo 1, University of Padova, 35131 Padova, Italy.
Basell Poliolefine Italia Srl, P.le G. Donegani 12, 44100 Ferrara, Italy.
Polymers (Basel). 2019 Jul 3;11(7):1133. doi: 10.3390/polym11071133.
Samples of random poly(butene--ethylene) copolymers produced with metallocene catalysts were studied in order to elucidate the different behaviors of this particular class of materials as a function of increasing ethylene (C2) content. The samples cooled down from the melt are semi-crystalline or amorphous and crystallize in different crystal modifications, depending on the amount of C2. Thermal analysis, X-ray diffraction, and microscopic techniques were used to follow the changes of the materials with aging time and to understand the structural and morphological behavior with the aim of highlighting possible peculiar properties, which may be of great interest in the application of such materials in the field of Hot Melt adhesives.
为了阐明这类特殊材料随乙烯（C2）含量增加而表现出的不同行为，对用茂金属催化剂生产的无规聚（丁烯-乙烯）共聚物样品进行了研究。从熔体冷却下来的样品是半结晶或非晶态的，并且根据C2的含量以不同的晶体变体结晶。采用热分析、X射线衍射和显微镜技术来跟踪材料随老化时间的变化，并了解其结构和形态行为，目的是突出可能具有的特殊性能，这些性能在热熔胶领域应用此类材料时可能会引起极大兴趣。
