Behavior of Plasticizers in Vinyl Chloride-Acetate Resins

Reed, M. C.; Connor, Leonard

doi:10.1021/ie50464a016

Cited by 24 publications

(2 citation statements)

References 3 publications

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“…In the following, we have used φ(mL/mL) = ω(g/g) = C (20 °C; g/mL) for all concentrations and temperatures, which introduces an uncertainty in these parameters of less than 10%. The refractive indices of DOP and polystyrene are 1.485 and 1.59, respectively, at 20 °C with δ n /δ T equal to −4.5 × 10 -4 K -1 and −4 × 10 -4 K -1 , respectively …”

Section: Resultsmentioning

confidence: 99%

Cooperative Diffusion of Concentrated Polymer Solutions: A Static and Dynamic Light Scattering Study of Polystyrene in DOP

Nicolai

Brown

1996

Macromolecules

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Solutions of polystyrene in DOP were studied as a function of the concentration (0.2−0.9 g/mL) and temperature (−10 to +130 °C) using static and dynamic light scattering. The concentration and temperature dependence of the cooperative diffusion coefficient and the osmotic modulus were determined. The concentration and temperature dependences of the cooperative diffusion coefficient are explained in terms of the concentration and temperature dependence of the osmotic modulus and the solvent mobility. At the concentrations studied, the effect of hydrodynamic interactions is small. Close to the glass transition temperature the solvent mobility is the dominant factor and can be treated in terms of the free volume theory.

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Section: Resultsmentioning

confidence: 99%

Cooperative Diffusion of Concentrated Polymer Solutions: A Static and Dynamic Light Scattering Study of Polystyrene in DOP

Nicolai

Brown

1996

Macromolecules

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“…), 58,197 (1945) . (6) Doolittle, A. K., J. Polymer Sci., 2, 121 (1947). (7) Doty, P., and Zable, H. S., Ibid., 1, 90 (1946).…”

Section: Literature Citedmentioning

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Plasticizers in Vinyl Chloride–Acetate Resins.

Reed¹,

Harding²

1949

Ind. Eng. Chem.

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Polyblends. I. Mechanical properties of polyblends of butadiene–acrylonitrile elastomers and copolymers of vinyl stearate and vinyl chloride

Jordan

Artymyshyn

Riser

et al. 1976

J of Applied Polymer Sci

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SynopsisSeveral nitrile rubber elastomers were polyblended, across the composition range, with selected polymeric compositions containing vinyl chloride. The compositions incorporated were (a) bulk poly(viny1 chloride) (PVC); (b) copolymers of vinyl stearate and vinyl chloride containing, respectively, 0.21, 0.36, and 0.47 weight fraction of the vinyl ester; and (c) mixtures containing the same weight fractions of di-2-ethylhexyl phthalate (DOP) with PVC. Mechanical, viscoelastic, optical, and volatility properties were studied on all blends in this first paper. To accurately compare the mechanical properties of polyblends of different systems, a criterion of mechanical equivalence was taken as the observance of similar stresses at break for compositions selected to have identical 100% moduli. Optimum mechanical equivalence, therefore, occurred at the largest ratios of 100% modulus to break stress for all systems compared. Optimum mechanical property equivalence was observed for NBR blends with PVC and for similar blends of both internally and externally plasticized systems containing 0.21 weight fraction of plasticizer. However, considerably more nitrile rubber was needed for PVC blends to acquire the properties of the plasticized systems. Mechanical equivalence was observed, hut was not optimum for systems having more plasticizer because tensile strengths were lower. Polyblending with NBR improved the toughness and low-temperature properties of starting vinyl stearate copolymers. Improved toughness was indicated by the expansion of areas under stress-strain curves. Refractive index matching appeared to explain the transparency of the best films and their relative freedom from haze. On heating a t 85"C, poly(viny1 chloride) and the copolymer polyblends suffered no volatility loss. Volatility of DOP from the blends was 1.5 times greater than for PVC-DOP mixtures. Because modulus-temperature curves and mechanical Tg values of the filler component shifted with composition, the mechanical behavior of these blends was in harmony with an accepted standard of interdomain compatibility,

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Behavior of Plasticizers in Vinyl Chloride-Acetate Resins

Cited by 24 publications

References 3 publications

Cooperative Diffusion of Concentrated Polymer Solutions: A Static and Dynamic Light Scattering Study of Polystyrene in DOP

Cooperative Diffusion of Concentrated Polymer Solutions: A Static and Dynamic Light Scattering Study of Polystyrene in DOP

Plasticizers in Vinyl Chloride–Acetate Resins.

Polyblends. I. Mechanical properties of polyblends of butadiene–acrylonitrile elastomers and copolymers of vinyl stearate and vinyl chloride

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