对于吡咯烷酮，即开始生产n -乙烯基吡咯烷酮，自1939年在路德维希港自1992年以来生产和巴斯夫的盖斯马在美国网站还。
The starting product for PVP, namely N-vinylpyrrolidone, has been produced since 1939 in Ludwigshafen and since 1992 also at BASF's Geismar site in the United States.
例如吡咯希夫碱、卟啉光敏剂、叶绿素铜钠盐等都是吡咯的衍生物。
Other compounds, for example, pyrrole Schiff base, porphyrin photosensitizers and sodium copper chlorophyll in, are also pyrrole derivatives.
方法在硝吡咯假单胞菌中引入氨基糖苷类抗生素抗性突变，以提高硝吡咯菌素的生产能力。
Method Introducing aminoglycoside antibiotic resistant mutation into a pyrrolnitrin producer to increase pyrrolnitrin productivity.
这种合成策略还可以通过控制炔酸酯这类底物来构筑多取代的对称吡咯衍生物和非对称吡咯衍生物。
Besides, this strategy provides an alternative way to construct symmetric and asymmetric polysubstituted pyrrole derivatives via controlling the starting materials of alkynoates.
结果：优选的最佳处方为微晶纤维素20％、交联聚乙烯吡咯烷酮6％、羧甲基淀粉钠5．5％和聚乙烯吡咯烷酮8％。
RESULTS:The optimized formulation was composed of microcrystalline cellulose 20%, cross-link polyvinyl pyrrolidone 6%, sodium carboxymethyl starch 5.5% and polyvinyl pyrrolidone 8%.
在复合纳米纤维中，聚乙烯吡咯烷酮与碘之间存在着化学键合、形成了聚乙烯吡咯烷酮-碘络合物。
In the composite nanofibers, chemical bonding existed between polyvinyl pyrrolidone and iodine to form PVP - I2 complex.
在复合纳米纤维中，聚乙烯吡咯烷酮与碘之间存在着化学键合、形成了聚乙烯吡咯烷酮-碘络合物。
In the composite nanofibers, chemical bonding existed between polyvinyl pyrrolidone and iodine to form PVP - I2 complex.
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