𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Properties and chain flexibility of poly(tetrahydro-4H-pyranyl-2-methacrylate)

✍ Scribed by Hadjichristidas, Nikos ;Mays, J. ;Vargo, R. D. ;Fetters, L. J.

Publisher
Wiley (John Wiley & Sons)
Year
1983
Tongue
English
Weight
300 KB
Volume
21
Category
Article
ISSN
0098-1273

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The dilute‐solution properties of six poly(tetrahydro‐4__H__‐pyranyl‐2‐methacrylate) (PTHPM) fractions covering the molecular weight (M~w~) range 4.8 × 10^4^ to 8.4 × 10^5^ (M~w~/M~n~ = 1.2–1.4) were studied in tetrahydrofuran, a good solvent, and in isobutanol, a θ solvent a t 30.5°C as determined by light scattering from the A~2~ vs. T plot. The unperturbed dimensions were calculated from a low‐angle laser light‐scattering and intrinsic‐viscosity data. The results indicate that PTHPM is less extended chain than poly(cyclohexyl methacrylate) (PCyM). The higher flexibility of PTHPM parallels the lower T, (57°C) of this polymer relative to PCyM (66°C).

📜 SIMILAR VOLUMES

Some aspects of the solution properties
Some aspects of the solution properties and chain flexibility of poly[2,2-propane-bis(4-phenylthiocarbonate)]
✍ L. Gargallo; E. Soto; F.R. Díaz; L.H. Tagle; D. Radić 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 409 KB

The dilute solution properties of poly[2,2-propane-bis (4-phenylthiocarbonate)] (PPhTC) in various solvents have been studied by viscosity, osmotic pressure and gel permeation chromatography measurements. The unperturbed dimensions were determined, and the viscometric relationships were established.