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Surface morphology evaluation of polymer beads based on divinylbenzene by atomic force microscopy

机译:基于二乙烯基苯的聚合物珠粒表面形貌的原子力显微镜评价

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摘要

Macroporous poly(styrene-co-divinylbenzene) and poly(divinylbenzene) beads were synthesized by modified suspension polymerization in the presence of different mixtures of toluene and heptane as porogen agent. Through atomic force microscopy, it was possible to identify the microspheres and the channels between them that constitute the bead pores. It was also possible to make a comparison with the results obtained by nitrogen desorption, a traditional technique used to determine the porosity of macroporous copolymers in the dry state. (C) 2002 John Wiley Sons, Inc. [References: 15]
机译:在甲苯和庚烷作为致孔剂的不同混合物存在下,通过改性悬浮聚合法合成了大孔聚(苯乙烯-共二乙烯基苯)和聚(二乙烯基苯)珠。通过原子力显微镜,可以识别微球及其之间构成珠孔的通道。也有可能与通过氮脱附获得的结果进行比较,氮脱附是一种用于确定干燥状态下大孔共聚物孔隙率的传统技术。 (C)2002 John Wiley Sons,Inc. [参考:15]

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