Topic
Miscibility
About: Miscibility is a research topic. Over the lifetime, 5521 publications have been published within this topic receiving 133547 citations. The topic is also known as: miscible.
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TL;DR: In this paper, the phase behavior of ternary blends consisting of poly(methyl methacrylate) (PMMA), polymethyl methacelate (PEMA), and poly(p-vinylphenol) (PVPh) was investigated by DSC and SEM.
Abstract: The phase behavior of ternary blends consisting of poly(methyl methacrylate) (PMMA), polymethyl methacrylate) (PEMA), and poly(p-vinylphenol) (PVPh) was investigated by DSC and SEM. In this ternary blend where PVPh is miscible with each of the other components, more than 60 wt% PVPh was required to cause miscibility between PMMA and PEMA. Based on the T g data, a ternary phase diagram was constructed. The miscibility behavior of this ternary blend as well as of the PMMA/PEMA/poly(vinylidene fluoride) and PMMA/PEMA/SAN systems was rationalized using the spinodal condition and the Flory-Huggins theory.
60 citations
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TL;DR: In this paper, an investigation of isothermal crystallization and thermal behavior of poly(ethylene oxide)/poly(ethyl methacrylate) (PEO/PEMA) blends is reported.
Abstract: Results of an investigation of isothermal crystallization and thermal behavior of poly(ethylene oxide)/poly(ethyl methacrylate) (PEO/PEMA) blends are reported. The blend composition and the crystallization temperature strongly influence the crystallization process from the melt and the melting temperature of PEO. The addition of PEMA to PEO causes a depression in the spherulite growth rate, in the overall kinetic crystallization constant, and in the melting temperature. Experimental data on the radial growth rate G and overall kinetic rate constant Kn are analyzed by means of the latest kinetic theory. From this analysis it emerges that the crystallization of pure PEO and PEO in the blend conforms to the regime I process of surface secondary nucleation. The depression of the melting temperature cannot be explained only in terms of a diluent effect due to the compatibility of the two components in the melt. Annealing and morphological effects, dependent on composition and time, must also be taken into account.
60 citations
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TL;DR: In this paper, a high pressure investigation of melting relationships in the Fe-S-Si system has been conducted in a multi-anvil apparatus from 10 to 27'GPa and up to 2343'K.
60 citations
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TL;DR: In this paper, the effects of branching characteristics of low-density polyethylene (LDPE) on its melt miscibility with high density polyethylenes (HDPE), were studied using molecular simulation.
60 citations
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TL;DR: In this article, the thermodynamics of mixing of low molecular weight model compounds is studied, and the results for the model compounds are shown to be useful in predicting the probability of miscibility occurring between the corresponding polymers.
Abstract: The miscibility between polystyrene polymers that contain potential hydrogen bond, or proton, donor groups and other polymers that are good hydrogen bond, or proton, acceptors is investigated. The thermodynamics of mixing of low molecular weight model compounds is studied. The proton donor groups include SO 3 H, CO 2 H, phenol, alcohol and hexafluoroisopropyl alcohol. The acceptor molecules are poly (N,N-dimethylacrylamide)) and poly(methyl methacrylate) The results for the model compounds are shown to be useful in predicting the probability of miscibility occurring between the corresponding polymers
60 citations