Miscibility and related rheological, physical, and optical properties of polycarbonate/poly(methyl methacrylate-co-phenyl methacrylate) blends: Effect of varying phenyl methacrylate composition

Autor: Se Hyeon Ju, Eun Jin Jeong, Hui Il Jeon, Yong Seok Kim, Youngjae Yoo, Sungmin Park
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Polymer Testing, Vol 125, Iss , Pp 108125- (2023)
Druh dokumentu: article
ISSN: 0142-9418
DOI: 10.1016/j.polymertesting.2023.108125
Popis: This study presents a systematic investigation of miscibility, rheological, and physical/optical properties of polycarbonate (PC)/poly (methyl methacrylate-co-phenyl methacrylate) (PMMA-co-PPhMA) blends with varying copolymer composition and blend weight percentage (wt%). Herein, single glass transition behavior from miscible blends was confirmed through differential scanning calorimetry (DSC) and dynamic mechanical analyzer (DMA), while further analysis revealed differences in blend homogeneity. X-ray scattering and rheometer measurements complemented this different phase homogeneity in the blends. PMMA-co-PPhMA with 14 mol% of PhMA (denoted as PMPA-2) demonstrated the most favorable miscibility and phase homogeneity among the prepared blends. Enhanced scratch resistance was achieved by increasing the wt% of PMMA-co-PPhMA, but phase inhomogeneity resulted in decreased optical transparency. The blend between PC and PMPA-2 exhibited optimal rheological, mechanical, and optical properties. This study provides insights into the PC-based blend materials for applications in various industrial fields.
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