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首页> 外文期刊>Journal of Applied Polymer Science >SYNTHESIS, CHARACTERIZATION, AND PROPERTIES OF INTERPENETRATING POLYMER NETWORKS CONTAINING FUNCTIONALIZED LATEX PARTICLES
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SYNTHESIS, CHARACTERIZATION, AND PROPERTIES OF INTERPENETRATING POLYMER NETWORKS CONTAINING FUNCTIONALIZED LATEX PARTICLES

机译：含功能胶乳粒子的互穿聚合物网络的合成，表征和性能

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摘要

Three-component interpenetrating polymer networks (IPNs) comprising polyurethane (PUR), poly(n-butyl methacrylate) (PBMA), and polystyrene (PS) latex particles were prepared in a modified one-shot synthesis. The hydroxy-functionlized and unmodified polystyrene latex particles were synthesized via a seeded emulsion polymerization. The incorporation of hydroxyethyl methacrylate into the latex particles was confirmed via diffuse reflectance infrared analysis and modulated-temperature differential scanning calorimetry. The IPNs were characterized by dynamic mechanical thermal analysis, tensile testing, hardness measurements, and transmission electron microscopy. The three-component materials exhibited higher values for the Young's modulus and the Shore A hardness and for the dynamic storage modulus in the higher temperature range from 80 to 140 degrees C than did the PUR/PBMA IPN alone. The latex particles with the hydroxyl functionality exhibited a better miscibility with the microheterogeneous PUR/PBMA IPN than did unfunctionalized PS latex particles, and, therefore, resulted in materials with better damping properties in the temperature range between 80 and 140 degrees C. Transmission electron micrographs confirmed the improved miscibility of the functionalized latex particles. The latex particles were not, however, dispersed on an individual level but formed agglomerates of between 2 and 20 mu m. (C) 1996 John Wiley & Sons, Inc. [References: 21]
机译：在改进的单次合成中，制备了包含聚氨酯（PUR），聚甲基丙烯酸正丁酯（PBMA）和聚苯乙烯（PS）乳胶颗粒的三组分互穿聚合物网络（IPN）。通过种子乳液聚合合成羟基官能化的和未改性的聚苯乙烯胶乳颗粒。通过漫反射红外分析和调温差示扫描量热法证实了甲基丙烯酸羟乙酯掺入胶乳颗粒。通过动态机械热分析，拉伸测试，硬度测量和透射电子显微镜对IPN进行表征。与单独的PUR / PBMA IPN相比，三组分材料在80至140摄氏度的较高温度范围内具有更高的杨氏模量和肖氏A硬度值以及动态储能模量值。具有羟基官能团的乳胶颗粒与未官能化的PS乳胶颗粒相比，具有更好的与微异质PUR / PBMA IPN的混溶性，因此在80至140摄氏度的温度范围内具有更好的阻尼性能。透射电子显微照片证实了官能化的胶乳颗粒的改进的混溶性。然而，胶乳颗粒没有以单独的水平分散，而是形成了2至20μm之间的附聚物。 （C）1996 John Wiley＆Sons，Inc. [参考：21]

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