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首页> 外文期刊>Journal of Crystal Growth >Melt growth and inhibition of ethylene oxide clathrate hydrate
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Melt growth and inhibition of ethylene oxide clathrate hydrate

机译:熔体的生长和环氧乙烷笼形水合物的抑制

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Growth and inhibition of single crystals of ethylene oxide clathrate hydrate provide experimental accessibility to similar phenomena in methane clathrate hydrates. Ethylene oxide hydrate single crystals were grown from the supercooled melt as rhombic dodecahedra, exhibiting { 1 1 0} as the slowest growing face. The addition of poly(N-vinylcaprolactam) (PVCap) or a random terpolymer of PVCap, poly(N-vinylpyrrolidone), and dimethylaminoethyl-methacrylate cause small scale branching of crystals, but with a uniform crystal orientation. A few tenths of a weight percent of these additives cause complete crystal growth inhibtion up toseveral degrees of supercooling.
机译:环氧乙烷笼形水合物的单晶的生长和抑制为甲烷笼形水合物的类似现象提供了实验可及性。环氧乙烷水合物单晶从菱形十二面体的过冷熔体中生长出来,表现出{1 1 0}作为最慢的生长面。聚(N-乙烯基己内酰胺)(PVCap)或PVCap的无规三元共聚物,聚(N-乙烯基吡咯烷酮)和甲基丙烯酸二甲基氨基乙基酯的加入会导致晶体小规模分支,但晶体取向均匀。这些添加剂的十分之一(重量)百分比会导致完全的晶体生长抑制,直至达到几个过冷度。

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