A series of methacrylate‐acrylonitrile‐butadiene‐styrene (MABS) resins was prepared using bulk polymerization. The polarity of the continuous phase and the compatibility of two phases were changed by adjusting the methyl methacrylate (MMA) content, choosing values that were close to styrene‐butadiene rubber solubility value. The possibility of controlling the microstructure of the MABS resin by changing the polarity of the components and the compatibility of two phases was assessed. The dynamic mechanical analysis shows that the compatibility of two phases varies with the MMA content. The morphological analysis shows that increasing MMA contents results in a gradual decrease in the sub‐inclusion structure with a network skeleton of rubber particles, and that all the particles become solid rubber when the MMA content reaches 75%. The sub‐inclusion structure reappears but does not have a network skeleton when the MMA content is 90%. The impact strength and morphological analysis indicate that the solid rubber particles and the sub‐inclusion structure with a network skeleton provide excellent toughness, while the sub‐inclusion structure without a network skeleton does not. In contrast, the transmittance of the ABS resin first increased and then decreased with increasing MMA content.

中文翻译：

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本体聚合透明甲基丙烯酸酯-丙烯腈-丁二烯-苯乙烯树脂合成过程中颗粒微结构的控制

使用本体聚合制备了一系列甲基丙烯酸酯-丙烯腈-丁二烯-苯乙烯（MABS）树脂。通过调整甲基丙烯酸甲酯（MMA）的含量，选择接近苯乙烯-丁二烯橡胶溶解度的值，可以改变连续相的极性和两相的相容性。评估了通过改变组分的极性和两相的相容性来控制MABS树脂的微观结构的可能性。动态力学分析表明，两相的相容性随MMA含量的变化而变化。形态分析表明，MMA含量的增加导致带有橡胶颗粒网络骨架的亚夹杂物结构逐渐减少，并且当MMA含量达到75％时，所有颗粒均变为固态橡胶。当MMA含量为90％时，子包含结构重新出现，但没有网络骨架。冲击强度和形态分析表明，固体橡胶颗粒和具有网络骨架的亚夹杂物结构具有出色的韧性，而没有网络骨架的亚夹杂物结构则没有。相反，随着MMA含量的增加，ABS树脂的透射率首先增加，然后降低。