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首页> 外文期刊>Journal of Applied Polymer Science >EFFECT OF MOLECULAR WEIGHT ON PREPARATION OF NANOPARTICLES BY PARTICLE DISSOLUTION METHOD FROM SUBMICRON-SIZED IONIZED STYRENE-METHACRYLIC ACID COPOLYMER PARTICLES IN NONIONIC EMULSIFIER SOLUTION
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EFFECT OF MOLECULAR WEIGHT ON PREPARATION OF NANOPARTICLES BY PARTICLE DISSOLUTION METHOD FROM SUBMICRON-SIZED IONIZED STYRENE-METHACRYLIC ACID COPOLYMER PARTICLES IN NONIONIC EMULSIFIER SOLUTION

机译：非离子型乳化剂中亚微米化电离苯乙烯-甲基丙烯酸共聚物颗粒中分子量的溶解对纳米颗粒制备的影响

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摘要

Styrene-methacrylic acid copolymer [P(S-MAA)] (92/8, molar ratio) nanoparticles were prepared by a dissolution of submicron-sized P(S-MAA) particles with various molecular weights in a polyoxyethylene nonylphenylether nonionic emulsifier aqueous solution at pH 13.0 and above 90 degrees C. The latter particles were produced by emulsion copolymerization in the presence of various concentrations of n-octyl mercaptan. The effect of molecular weight on the dissolution behavior was examined at various conditions and using various kinds of the nonionic emulsifier. It was clarified that a decrease in the molecular weight led to the production of the nanoparticles at mild treatment conditions. (C) 1997 John Wiley & Sons, Inc. [References: 5]
机译：通过将具有各种分子量的亚微米级P（S-MAA）颗粒溶解在聚氧乙烯壬基苯基醚非离子乳化剂水溶液中来制备苯乙烯-甲基丙烯酸共聚物[P（S-MAA）]（92/8，摩尔比）纳米颗粒在pH 13.0和高于90摄氏度的条件下。后一种颗粒是在各种浓度的正辛基硫醇存在下通过乳液共聚生产的。在各种条件下和使用各种非离子乳化剂检查了分子量对溶解行为的影响。明确了分子量的降低导致在温和的处理条件下产生纳米颗粒。 （C）1997 John Wiley＆Sons，Inc. [参考：5]

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