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Outline
Morphologies of extended-chain crystals with different characteristics, i.e. wedge-shaped crystals, bent crystals and wedge-shaped bent crystals, were disclosed with scanning electron microscopy (SEM) and atomic force microscope (AFM) in the high-pressure crystallized poly (ethylene terephthalate)/bisphenol-A polycarbonate (PET-PC) blends. The observations revealed that the thickening growth for the large polyester extended-chain single crystals should first undergo the nucleation step leading to the folded-chain nuclei, and then, the chain extension process which is an isothermal thickening resulting from transesterification and sliding diffusion. The morphological structures shed light on the fundamental nature of the large single crystals in the blends, which may be instructive to grow such large crystals in similar polymer systems.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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