Compatibility in immiscible polysulfone/poly(ethylene terephthalate) blends

Retolaza, A.; Eguiazábal, J. I.; Nazábal, J.

doi:10.1002/app.20727

Cited by 4 publications

(2 citation statements)

References 51 publications

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“…Therefore, this increase in T g points to the occurrence of reactions, which will be discussed later. The lack of a clear glass transition44,45 in the pure PEMA‐Zn prevented the study of a possible PEMA‐Zn‐rich phase, which will be discussed in the section Morphology .…”

Section: Resultsmentioning

confidence: 99%

Compatibilization of Polyamide‐6/Polyarylate Blends by Means of an Ionomer

Retolaza¹,

Eguiazábal²,

Nazábal³

2005

Macro Materials & Eng

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IntroductionPolymer blends and alloys are an important research field both from a basic and applied point of view. For this reason, the literature and knowledge concerned with them are clearly growing. [1,2] A typical and important problem when materials based in new polymer blends are developed is that, although the properties of the two components are complementary, the blends are immiscible, and as a consequence usually mechanically incompatible. Therefore, compatibilization is usually needed. [3,4] It is mainly attained either by means of reactive processing [5,6] of functionalized chains, which generate reacted copolymers, or by the addition of a third component that either reacts or interacts with both of the components of the blend. Of the added third components, functionalized polymers, commercial polymers, or ionomers have often been reported in the literature.When copolymers are produced, they locate at the polymer/ polymer interface, decreasing the interfacial tension and improving both the microstructure and the properties of the blend.Polyamide-6 (PA6) is a partially crystalline polymer that has been blended with many second components such as poly(ethylene terephthalate) (PET), [7,8] phenoxy, [9] poly-(amino-ether), [10] rubbers, [11][12][13][14] liquid crystalline polymer, [15] polysulfone, [16] poly(ether sulfone), [17] poly(butylene terephthalate), [18][19][20] and polyethylene. [21,22] Of these, PA6/polycarbonate (PC) blends are specially attractive, and as a consequence, the effects of mixing time and blend composition, [23] PA6 terminal groups, [24] interchange reactions, [25] and different processing methods [26] on properties and morphology have been studied.Polyarylate of bisphenol A (PAr) is a polymer with characteristics rather similar to those of PC, but with a higher T g Summary: Polyamide-6 (PA6)/polyarylate of bisphenol A (PAr) blends rich in PA6 and modified with an additional 15% poly[ethylene-co-(methacrylic acid)] partially neutralized with zinc (PEMA-Zn) as a compatibilizer were obtained by melt mixing. Their phase structure, morphology, and mechanical performance were compared with those of the corresponding binary blends. The ternary blends were composed of a PA6 amorphous matrix and a dispersed PAr-rich phase in which reacted PA6 and PEMA-Zn were present. Additionally, minor amounts of a crystalline PA6 phase, and a PEMAZn phase were also present. The chemical reactions observed led to a clear decrease in the dispersed particle size when PEMA-Zn was added, indicating compatibilization. Consequently, the mechanical behavior of the blends with PEMAZn improved, leading, mainly in the case of the blend with 10% PAr, to significant increases in both ductility and impact strength with respect to those of the binary blends. These increases were more remarkable than the slight decrease in stiffness as a consequence of the rubbery nature of the compatibilizer.Cryogenically fractured surface of the PA6/PAr-PEMA-Zn 70/30-15 ternary blend.[201 8C by dynamic mechanical analysis (DMTA)] tha...

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Section: Resultsmentioning

confidence: 99%

Compatibilization of Polyamide‐6/Polyarylate Blends by Means of an Ionomer

Retolaza¹,

Eguiazábal²,

Nazábal³

2005

Macro Materials & Eng

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“…Most polymer blends comprising PSU contain engineering or high‐performance polymers as the second component. Among others, blends with poly(ether ether ketone),24, 25 phenolphthalein poly(ether ether ketone),26, 27 poly(phenylene sulfide),28–32 poly(hydroxy ether of bisphenol A),33 polybenzimidazole,34 liquid‐crystal polymers,35–37 thermoplastic polyesters38–40 and polyamide 641 have been studied. Blends of PEI with PSU have been reported in the patent literature 42, 43.…”

Section: Introductionmentioning

confidence: 99%

Structure and Mechanical Properties of Directly Injection‐Molded Blends of Poly(ether imide) and Polysulfone of Bisphenol A

Ramiro¹,

Eguiazábal²,

Nazábal³

2007

Macro Materials & Eng

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Blends of PEI with PSU were prepared directly during the plasticization step of an injection molding process. The phase behavior, the morphology and the mechanical properties of the blends were determined. The blends were composed of an almost pure PEI phase and a PSU‐rich phase. The particle size was very small, indicating a low interphase tension that is attributed to the presence of PEI in the two phases of the blends. The modulus of elasticity of the blends was close to that of the additive. The impact strength was higher than that of PEI. The tensile strength and elongation at break were also almost additive, despite the biphasic nature of the blends, indicating the existence of good interfacial adhesion.magnified image

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Polymer Blends

Bussink¹,

Grampel²,

Weber

2017

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Introduction 2. Market Requirements 3. Blend Technologies 3.1. Thermodynamics 3.2. Compatibility 3.3. Compounding 3.4. Reactive Compounding 3.5. Mechanical Properties 3.6. Additives 4. Property and Application Profiles of Selected Blends 4.1. Polyolefins 4.2. Poly(Vinyl Chloride) 4.3. Styrene Polymers and Copolymers 4.4. Polyamides 4.5. Poly(2,6‐Dimethyl‐1,4‐phenylene Ether) 4.6. Polycarbonates 4.7. Polyesters 4.8. Polyetherimides 4.9. Polysulfones 4.10. Polyoxymethylenes 4.11. Polyarylates and Copolyarylate–Carbonate Blends 4.12. LC‐Polyesters in Blends 4.13. Poly(Phenylene Sulfide) 5. General Application Technology 5.1. Processing of Blends 5.2. Design Technology 6. Future Developments 6.1. Recycling 6.2. Blends from Biopolymers 6.3. New Developments 6.4. Outlook

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Compatibility in immiscible polysulfone/poly(ethylene terephthalate) blends

Cited by 4 publications

References 51 publications

Compatibilization of Polyamide‐6/Polyarylate Blends by Means of an Ionomer

Compatibilization of Polyamide‐6/Polyarylate Blends by Means of an Ionomer

Structure and Mechanical Properties of Directly Injection‐Molded Blends of Poly(ether imide) and Polysulfone of Bisphenol A

Polymer Blends

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