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- 《Journal of Vacuum Science & Technology A Vacuum Surfaces & Films》 被引量: 96发表: 1990年 Preparation and Radical Polymerization of p-Vinylphenoxyl Polytetrahydrofuran Macromer polytetrahydrofuran macromer, living polytetrahydrofuran was coupled with sodium p-vinylphenoxide prepared by the reaction...
Remove material with pumps or vacuum equipment. Absorb residual liquid with natural or synthetic sorbents, shovel into containers with covers. /Xylenes/Water: contain with booms, weirs, or natural barriers. Use (oil) skimming equipment or suction hoses to remove slick, followed by application of ...
p-Toluidine has been crystallised from hot water (charcoal), EtOH, *benzene, pet ether or EtOH/water (1:4), and dried in a vacuum desiccator. It can also be sublimed at 30o under vacuum. For further purification, use has been made of the oxalate, the sulfate and acetylation. The ...
Polycrystalline Bi2Se1-xBrxS2 (where x = 0, 0.015, 0.03, 0.06, 0.09, 0.0105, 0.12, 0.15, 0.18, or 0.21) powders were prepared by melting stoichiometric amounts of high-purity elements (>99.99%) packed under vacuum in glass ampoules at 1173 K for 10 h, followed by annealing...
vacuum. The anhydrous acid can be crystallised from *benzene, CHCl3, ethyl acetate, anhydrous MeOH, or from acetone by adding a large excess of *benzene. It can also be dried under vacuum at 50o. The S-benzylisothiuronium salt has m 182o (from aqueous EtOH). [Beilstein 11 IV 241....
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