Prediction of a synergistic blend composition range based on polymer-solvent interactions * *IPCL communication number 366

Pendyala, V. N. S.; Xavier, S. F.

doi:10.1016/s0032-3861(96)00920-2

Cited by 9 publications

(2 citation statements)

References 22 publications

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“…The above results can be explained by considering the solubility parameter difference between polymer and solvent. The solubility parameter of PC, DCM, and THF is 20.39, 20.27, and 19.43 (J cm −1 ) 0.5 , respectively [29]. Owing to the closer solubility parameters between PC and DCM, it means DCM is a better solvent than THF for PC, the nonsolvent tolerance of the PC/DCM solution must be higher than the PC/THF.…”

Section: Resultsmentioning

confidence: 99%

Characterization of morphology and gas separation performance of dry‐cast polycarbonate membranes

Chen

et al. 2012

Polymer Engineering & Sci

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The development of the morphology and microstructure in dry‐cast membranes from polycarbonate (PC)/dichloromethane (DCM) and PC/tetrahydrofuran (THF) solutions was investigated in this work. It was shown that changing the relative humidity (RH) of the air altered the transparency and the surface morphology of the membranes. Positron lifetime spectra for membranes with different surface morphology gave similar free volume parameters, which are believed to be mainly responsible for the constant selectivity of the membranes. In this study, the permeation and adsorption properties of the PC membranes cast from PC/DCM and PC/THF solutions were characterized as a function of the RH. Results demonstrated that the permeability of membranes increased with increasing RH of the air. The change in the permeability is presumably related to the forming of pores on the membrane surface due to the vapor‐induced phase separation during casting. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Characterization of morphology and gas separation performance of dry‐cast polycarbonate membranes

Chen

et al. 2012

Polymer Engineering & Sci

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“…This table also gives the average partial solubility parameters of polycarbonate found in the literature. 38–40…”

Section: Resultsmentioning

confidence: 99%

Mobility and solubility of antioxidants and oxygen in glassy polymers. I. Concentration and temperature dependence of antioxidant sorption

Boersma

2003

J of Applied Polymer Sci

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Sorption experiments have been conducted at temperatures between 65 and 135°C using five phenolic antioxidants in polycarbonate at different antioxidant concentrations. A model based on the free volume was used to predict the mobility of the additives. In this model, the ratio of the specific volume of a jumping unit to the free volume available in the polymer determines the diffusion behavior of the additives. It was found that the mobility of the antioxidant was predicted accurately using literature and experimental data on the free volume in polycarbonate. Furthermore, the solubility of the antioxidants was predicted very well, based on thermodynamic considerations.

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Properties and Performance of Polymer Blends

Xavier

2003

Polymer Blends Handbook

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Prediction of a synergistic blend composition range based on polymer-solvent interactions * *IPCL communication number 366

Cited by 9 publications

References 22 publications

Characterization of morphology and gas separation performance of dry‐cast polycarbonate membranes

Characterization of morphology and gas separation performance of dry‐cast polycarbonate membranes

Mobility and solubility of antioxidants and oxygen in glassy polymers. I. Concentration and temperature dependence of antioxidant sorption

Properties and Performance of Polymer Blends

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