Gelation kinetics of polymers confined in water/oil-saturated porous materials probed by NMR

被引：2
|
作者：
Hansen, EW
Stöcker, M
Olafsen, K
Kvernberg, PO
机构：
[1] SINTEF Appl Chem, N-0314 Oslo, Norway
[2] SINTEF Mat Technol, N-0314 Oslo, Norway
[3] Univ Oslo, N-0314 Oslo, Norway
来源：
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 1999年 / 20卷 / 1-2期
关键词：
D O I：
10.1080/01932699908943817
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The gelation of polyvinylalcohol with glutaraldehyde confined in a water/oil (=3/1 in volume ratio) saturated sandstone (Bentheimer) was characterized by H-1 NMR spin-lattice relaxation rate (1/T-1) measurements and Pulse Field Gradient (PFG) NMR diffusion measurements. The gelation rate was found to be (12.8 +/- 1.3)(.)10(-5) s(-1) at 340 K, which is approximately an order of magnitude faster than in bulk solution. In comparison, the gelation rate within the same porous material containing no oil phase was even faster, by a factor of 2.
引用
收藏
页码：723 / 741
页数：19
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