Miscibility studies of polymer blends by viscometry methods

Lizymol, P. P.; Thomas, Sabu

doi:10.1002/app.1994.070510407

Cited by 50 publications

(50 citation statements)

References 21 publications

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“…characterize compatibility of different pairs of The polystyrene (PS) sample of nominal polydispolymers by Shih and Beatty, 26 Lizymol and persity index M V w /M V n Å 1.06 was obtained from Thomas, 27 and other research groups. [28][29][30] KulPressure Chemical Company, Pittsburgh, PA, shreshtha et al 31 applied the viscosity method USA.…”

Section: Resultsmentioning

confidence: 99%

Miscibility of polystyrene with poly(ethylene oxide) and poly(ethylene glycol)

Abdel‐Azim

Atta

Farahat

et al. 1998

J. Appl. Polym. Sci.

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ABSTRACT:The intrinsic viscosity of polystyrene-poly(ethylene oxide) (PS-PEO) and PS-poly(ethylene glycol) (PEG) blends have been measured in benzene as a function of blend composition for various molecular weights of PEO and PEG at 303.15 K. The compatibility of polymer pairs in solution were determined on the basis of the interaction parameter term, Db, and the difference between the experimental and theoretical weight-average intrinsic viscosities of the two polymers, D[h]. The theoretical weightaverage intrinsic viscosities were calculated by interpolation of the individual intrinsic viscosities of the blend components. The compatibility data based on [ h] determined by a single specific viscosity measurement, as a quick method for the determination of the intrinsic viscosity, were compared with that obtained from [ h] determined via the Huggins equation. The effect of molecular weights of the blend components and the polymer structure on the extent of compatibility was studied.

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Section: Resultsmentioning

confidence: 99%

Miscibility of polystyrene with poly(ethylene oxide) and poly(ethylene glycol)

Abdel‐Azim

Atta

Farahat

et al. 1998

J. Appl. Polym. Sci.

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“…15 Studies through viscometry are also in agreement with the solid-state analysis for PVC±poly [ethylene-co-(vinyl acetate)] (EVA) compatibility and EVA±poly(styreneco-acrylonitrile) (SAN) imcompatibility. 16 In this work, studies on the interaction of poly (ethylene oxide) with [3,6]-ionene (cationic) and sodium poly(4-styrene sulphonate) (anionic) polyelectrolytes are reported. The main purpose is to analyse the viscometric behaviour of the blends in water solution in comparison with solid ®lms analysed by thermal analysis and optical microscopy techniques.…”

Section: ±7mentioning

confidence: 99%

Poly(ethylene oxide)-polyelectrolyte blends: viscometric and thermal analysis behaviour

et al. 2000

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“…Solution-state miscibility evaluated by the viscosity method can be correlated to bulk solid-state miscibility of polymer blends 17,18 . From viscometric technique, Krigbaum interaction parameter term (b) can be obtained; b is positive for miscible blends and negative for immiscible polymer blends [17][18][19][20][21][22] . Thus using viscometric technique we can predict the solid-state miscibility of polymer blends.…”

Section: Theorymentioning

confidence: 99%

Morphology and Miscibility of Chitin-Polyaniline Blend

Ramaprasad¹,

Rao²

2017

Current Science

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In this article, we discuss the blending of chitin with polyaniline (PANI) and its miscibility. Miscibility of the chitin-PANI blend has been studied by solution viscometry, Fourier transform infrared (FTIR) spectrum and scanning electron microscope (SEM) techniques. From viscosity measurement Krigbaum and Wall polymer-polymer interaction parameter (b) is calculated; it is found to be positive for all compositions of the blend. From FTIR analysis, probable interaction is predicted. Viscosity measurement of chitin and PANI blends shows a linear relationship between intrinsic viscosity and blend composition with a positive deviation from the theoretical value and positive value of b refers to the miscibility of the blend system. From SEM studies, blends having 5% lithium chloride (LiCl) show a homogeneous and continuous structure. Blends having less than 5% LiCl show a homogeneous and fibrillar structure, which is further supported by atomic force microscopy studies. Fibrous structure improves as the amount of PANI increases. FTIR analysis confirms the interaction between chitin and PANI. Further, this result is supported by DSC, TGA, XRD and dissolution studies of the blend.

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Miscibility studies of polymer blends by viscometry methods

Cited by 50 publications

References 21 publications

Miscibility of polystyrene with poly(ethylene oxide) and poly(ethylene glycol)

Miscibility of polystyrene with poly(ethylene oxide) and poly(ethylene glycol)

Poly(ethylene oxide)-polyelectrolyte blends: viscometric and thermal analysis behaviour

Morphology and Miscibility of Chitin-Polyaniline Blend

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