✦ LIBER ✦

Development of a simple experimental method to measure interphase composition profiles generated by diffusion in polymers

✍ Scribed by Pablo Tomba; José Carella; Enrique Pardo

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 299 KB
Volume: 35
Category: Article
ISSN: 0887-6266
DOI: 10.1002/(sici)1099-0488(19971115)35:15<2435::aid-polb6>3.0.co;2-s

No coin nor oath required. For personal study only.

✦ Synopsis

An experimental method to determine interphase composition profiles in amorphous polymers pairs and polymer-solvent pairs is presented. The method is based on the measurement of dynamic mechanical properties of slender composite beams, and well-established properties of amorphous polymer homogeneous blends and solutions. The method does not require tracers. A simple calibration procedure is included in the description, and some results for a polystyrene-polystyrene pair are used to illustrate the method application.

📜 SIMILAR VOLUMES

Development of a simple experimental met

Development of a simple experimental method to measure interphase composition profiles generated by diffusion in polymers. Comparison between bending and torsion techniques

✍ E. Pardo; J. P. Tomba; J. M. Carella 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 120 KB 👁 2 views

Calculation and experimental verificatio

Calculation and experimental verification of concentration profiles for selected species at the interphase generated by diffusion in polymer pairs

✍ J. Pablo Tomba; José M. Carella 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 262 KB 👁 1 views

A method for calculating diffusion rates for individual species in concentrated regime is outlined. The effects of monomeric friction coefficient, Flory-Huggins thermodynamic interaction parameter, individual species molecular weights, local molecular weights distribution, and local T g are precisel