Copolymer-tethered nanoparticles as compatibilizers of immiscible PS/PMMA blends

IF 2.2 4区化学 Q3 CHEMISTRY, PHYSICAL

Colloid and Polymer Science Pub Date : 2024-08-30 DOI:10.1007/s00396-024-05311-5

Shuyue Wei, Yan Zhang, Xinyue Zhang, Yutao Sang, Zhihong Nie

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Abstract

Enhancing the compatibility of immiscible polymer blends is crucial to achieving optimized performance for polymer materials. This work presents a comprehensive investigation into the effect of copolymer-tethered nanoparticles (NPs) on the compatibilization of immiscible polystyrene/polymethyl methacrylate (PS/PMMA) blends. The morphology, rheological behavior, and mechanical properties of the blends were analyzed to compare the compatibilization effects of NPs tethered with block, random, and graft copolymers. Our findings indicate that block copolymer-tethered NPs exhibited superior compatibilization efficiency in contrast to random and graft copolymer-tethered NPs. Moreover, by achieving an optimized balance in selective molecular entanglement, the incorporation of 3 wt% block copolymer-tethered NPs with extended PS and PMMA blocks demonstrated the most efficient compatibilization, decreasing the size of dispersed phases from 6.42 ± 9.66 µm to 1.25 ± 0.73 µm while boosting the tensile strength of blends by 78%.

Graphical Abstract

This work presents a comprehensive investigation into the effect of copolymer-tethered nanoparticles on the compatibilization of immiscible polystyrene/polymethyl methacrylate (PS/PMMA) blends.

Abstract Image

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作为不相溶 PS/PMMA 混合物相容剂的共聚物系留纳米粒子

提高不相溶聚合物共混物的相容性对于实现聚合物材料的最佳性能至关重要。本研究全面探讨了共聚物系留纳米粒子（NPs）对不相溶聚苯乙烯/甲基丙烯酸甲酯（PS/PMMA）共混物相容性的影响。我们分析了共混物的形态、流变行为和机械性能，以比较 NPs 与嵌段、无规和接枝共聚物的相容效果。我们的研究结果表明，与无规共聚物和接枝共聚物系链的 NPs 相比，嵌段共聚物系链的 NPs 表现出更高的相容效率。此外，通过实现选择性分子缠结的最佳平衡，将 3 wt%的嵌段共聚物系留 NPs 与扩展的 PS 和 PMMA 嵌段进行相容的效率最高，分散相的尺寸从 6.42 ± 9.66 µm 减小到 1.图解摘要本研究全面探讨了共聚物系链纳米粒子对不相溶聚苯乙烯/甲基丙烯酸甲酯（PS/PMMA）共混物相容的影响。

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来源期刊

Colloid and Polymer Science 化学-高分子科学

CiteScore

4.60

自引率

4.20%

发文量

111

审稿时长

2.2 months

期刊介绍： Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.

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