PH9238 | 聚乙烯吡咯烷酮(PVP) K-30 CAS号：9003-39-8

英文名称：PVP；1-ethenyl 2-pyrrolidinone homopolymer；1-vi-nyl-2-pyrrolidinone polymers； polyvidone； poly［1-（2 -OXO -1 pyrrolidinyl）ethyl-ene］；polyvinylpyrrolidone；Kollidon；Lu-viskol；Periston；Plasdone；Protagent 
其他名称：聚N-乙烯基丁基内酰胺；聚维酮；l-乙烯基2-吡咯烷酮均聚物；皮维碘
CAS号：9003-39-8
分子式：(C6H9NO)n
级别：AR
pH（100g/L，25℃）：3.0～7.0
性状：白色或近白色或微黄色类似蛋白的固体。有微臭。PVP 在水、醇、胺及卤代烃中易溶，不溶于丙酮、乙醚等。具有优良的溶解性、生物相溶性、生理惰性、成膜性、膜体保护能力和与多种有机、无机化合物复合的能力，对酸、盐及热较稳定，因此有着广泛的用途。熔点:130℃
用途：生化研究。用于从水提物中吸收酚类和鞣酸以提纯植物酶。用作色谱吸附剂以分离芳香酸类、醛类、酚类。用于啤酒、葡萄酒的澄清。气相色谱固定相。织物整理。胶体保护

保存：常温运输与干燥保存，有效期3年

PVP，是一种非离子型高分子化合物，是N-乙烯基酰胺类聚合物中最具特色，被研究得最深、最广泛的精细化学品。已发展成为非离子、阳离子、阴离子3大类，工业级、医药级、食品级3种规格，相对分子质量从数千至一百万以上的均聚物、共聚物和交联聚合物系列产品，并以其优异独特的性能获得广泛应用。


PVP按其平均分子量大小分为四级，习惯上常以K值表示，不同的K值分别代表相应的PVP平均分子量范围。K值实际上是与PVP水溶液的相对粘度有关的特征值，而粘度又是与高聚物分子量有关的物理量，因此可以用K值来表征PVP的平均分子量。通常K值越大，其粘度越大，粘接性越强。

PVP, a non-ionic polymer, is one of the most distinctive and widely studied fine chemicals among N-vinylamide polymers. Has developed into non-ionic, cationic, anionic 3 categories, industrial grade, medical grade, food grade 3 specifications, relative molecular weight from thousands to more than one million homopolymer, copolymer and crosslinked polymer series products, and with its excellent unique properties have been widely used.


PVP is divided into four stages according to its average molecular weight, which is usually represented by K value. Different K values respectively represent the corresponding average molecular weight range of PVP. The K value is actually the characteristic value related to the relative viscosity of PVP solution, and the viscosity is a physical quantity related to the molecular weight of the polymer, so the average molecular weight of PVP can be characterized by K value. Generally, the larger the K value, the greater the viscosity, the stronger the adhesion.