𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Solvent dynamics in swollen polymers

✍ Scribed by Florian Müller-Plathe

Book ID
103034213
Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
460 KB
Volume
252
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

We report molecular dynamics simulations of benzene-polystyrene systems (0-84.2 wt.%). The composition dependence of calculated solvent diffusion coefficients shows good agreement with experiment and it also follows well the predictions by lattice models. The mobility of solvent molecules in the first solvation shell of the polymer is the same as that in the bulk. The reorientation of benzene molecules in the gel is non-exponential and anisotropic, the reorientation of the ring normal being slower than the in-plane reorientation. This anisotropy increases from 10 ° for neat benzene to 10 3 at the highest polymer concentration.

📜 SIMILAR VOLUMES

Diffusion of Solvent in Swollen Latex Pa
Diffusion of Solvent in Swollen Latex Particles
✍ Mark C. Piton; Alison J. Lennon; Bogdan E. Chapman; Philip W. Kuchel 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 381 KB

Pulsed field gradient (PFG) NMR spectroscopy was used to measure the translational diffusion coefficient of solvent toluene in spheres made from polystyrene (latex). The latex spheres had a bimodal size distribution that was measured using transmission electron microscopy and image analysis. Analysi