Ths paper reviews the property, some methods about synthesis and use of polyvinyl pyrrolidone.
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2. 由于这些吡咯烷酮可用于广泛的应用使用不同的功能。
Due to these varied features PVP can be used for a wide range of applications.
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3. 用化学动力学方法预测了聚乙烯吡咯烷酮碘的贮存期。
The shelflife of providone-iodine was forecasted by the method of chemical dynamics.
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4. 对比了n甲基2吡咯烷酮与常用锂电池有机溶剂的性能。
A comparison is made of the performances between N-methyl-2-pyrrolidone and commonly-used organic solutions in lithium batteries.
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5. 用此法制得的聚乙烯基吡咯烷酮适用于药物和食品工业。
The PVP obtained can be applied to the pharmaceutical and food industries.
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6. 吡咯烷酮酸钠被认为是一种天然形成的滋润因素(NMF)。
Sodium PCA is thought to be a kind of natural moisturizing factor (NMF).
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7. 聚乙烯基吡咯烷酮(pvp)，是一种水溶性精细高分子聚合物。
Polyvinylpyrrolidone (PVP) is a kind of fine polymer obtained by free radical polymerization of N-vinyl pyrrolidone (NVP).
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8. 吡咯烷酮经N烷基化、氨解反应合成了乙拉西坦，总收率42.6%。
Etiracetam was synthesized from 2-pyrrolidone by N-alkylation and aminolysis. The overall yield was 42.6%.
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9. 本发明公开了一种烟草保润剂，该烟草保润剂是吡咯烷酮羧酸盐的水溶液。
The present invention discloses a kind of tobacco humectant, which is water solution of pyrrolidone carboxylate.
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10. 发明的三元：（一）一乙烯基酰胺，如聚乙烯吡咯烷酮或乙烯基己内酰胺；
The terpolymers of the invention: (a) a vinyl lactam, such as vinyl pyrrolidone or vinyl caprolactam;
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11. 以吡咯烷酮为起始原料进行成盐、缩合、氨化试验，考察影响收率的工艺因素。
The condensation and ammonification tests is proceed by using pyrrolidone as the start material.
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12. 实验表明N—甲基吡咯烷酮综合传热性能优于萘，可望作为中温热管工质使用。
This indicates that N-methyl pyrrolidone is superior to naphthalene in comprehensive heat transfer performance and is suitable to be used in moderate-temperature heat pipe.
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13. 与聚乙烯聚吡咯烷酮比较，具有吸附速度快、吸附单宁更强及成本低廉的优点。
Compared to the polyvinyl pyrrolidone, the rice hull adsorbent has advantages of fast adsorption, stronger adsorbability for tannin and lower cost.
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14. 结果：微晶纤维素与交联聚乙烯吡咯烷酮的最佳处方用量分别为40%、10%；
RESULTS:The optimized formula dosage of microcrystalline cellulose and crospolyvinylpyrrolidone were40%and10%respectively;
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15. 研究了交联聚乙烯吡咯烷酮(PVPP)吸附库拉索芦荟凝胶液中多酚的条件和效果。
The adsorption conditions and effects on poly-phenol in Aloe vera gel with cross linked polyvinyl pyrrolidone (PVPP) was studied in this paper.
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16. 本发明涉及化学聚合物的制备方法，蛋白质大分子印迹聚乙烯基吡咯烷酮的制备方法。
The invention relates to a method for preparing chemical polymers, particularly relates to a method for preparing protein macromolecule imprinted periston.
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17. 以溶剂A和N-甲基吡咯烷酮的混合物为萃取剂，对催化裂化柴油进行了脱色精制研究。
Refining method with solvent mixed A with N-methyl pyrrolidone was used to decolor the FCC diesel oil.
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18. 以硝酸银为原料，经过改动聚乙烯吡咯烷酮pvp地质量，到达节制纳米构造银地描摹。
Take hydrogen nitrate silver as raw material, by changing polyethylene azole alkane ketone PVP mass, reaching the appearance controlling the silver nanometer structure shape.
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19. 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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20. 考察了聚乙烯吡咯烷酮(pvp)以及冻融处理对丹参酮脂质体的药物渗漏和微粒聚结特性的影响。
The effects of PVP in formulation and freeze thawing steps on drug leakage and aggregation of tanshinone liposomes were investigated.
Freeze-dried vaccine was mixed with the vinyl-pyrrolidone monomer before being placed into microneedle molds and polymerized at room temperature using ultraviolet light.
The main factors that influence tablet hardness and disintegration time are wetting agent ethanol, agglutinating agent polyvinylpyrrolidone(PVP) and tablet pressure.
Results: The composition of the choice breaking agents is 5% of cross-linked polyvinylpyrrolidone, 40% of microcrystalline cellulose and 15% of low-replacing hydroxypropyl cellulose.
Famotidine dispersible tablets were prepared. The influence of PVP concentration, sodium starch glycolate quantity and different medium on disintegration and dissolution rate is discussed.
The invention also provides a solvent for the production process of knitted impregnated PU gloves, which is prepared from polyurethane resin and methyl l pyrrolidone according to a certain proportion.
The applications of polyvinylpyrrolidone (PVP) in the preparation of pharmaceuticals, especially for adhesion, dispersion, film-coating, and controlled release etc., are summarized.
