POLYMER ADSORPTION AND DESORPTION STUDIES VIA H-1-NMR RELAXATION OF THE SOLVENT

被引：134

作者：

VANDERBEEK, GP ^{[1
]}

STUART, MAC ^{[1
]}

COSGROVE, T ^{[1
]}

机构：

[1] UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,AVON,ENGLAND

来源：

LANGMUIR | 1991年 / 7卷 / 02期

关键词：

D O I：

10.1021/la00050a022

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Proton NMR relaxation measurements of the solvent in silica dispersions have been carried out as a function of polymer coverage, solution pH, and added displacer. We find that the solvent spin-lattice relaxation rate is enhanced as a result of polymer adsorption and that, with proper calibration, this enhancement can be used to obtain the adsorbed amount in trains. The results are consistent with bound fraction estimates obtained from the Scheutjens-Fleer theory of polymer adsorption and also with recent results on the hydrodynamic thickness of adsorbed polymer layers. Besides information about the conformation of adsorbed polymers, the effective polymer adsorption energy can also be determined by this NMR technique.

引用

页码：327 / 334

页数：8

共 29 条

[1] MEASUREMENT OF THE POLYMER-BOUND FRACTION AT THE SOLID-LIQUID INTERFACE BY PULSED NUCLEAR MAGNETIC-RESONANCE
BARNETT, KG
COSGROVE, T
VINCENT, B
SISSONS, DS
COHENSTUART, M
[J]. MACROMOLECULES, 1981, 14 (04) : 1018 - 1020
[2] THIN-LAYER CHROMATOGRAPHY OF POLYMERS
BELENKII, BG
GANKINA, ES
[J]. JOURNAL OF CHROMATOGRAPHY, 1977, 141 (01): : 13 - 90
[3] THE EFFECTS OF MORPHOLOGY AND EXCHANGE ON PROTON NMR RELAXATION IN AGAROSE GELS
BELTON, PS
HILLS, BP
RAIMBAUD, ER
[J]. MOLECULAR PHYSICS, 1988, 63 (05) : 825 - 842
[4] CARRINGTON A, 1979, INTRO MAGNETIC RESON, P183
[5] NEUTRON-SCATTERING FROM ADSORBED POLYMER LAYERS
COSGROVE, T
HEATH, TG
RYAN, K
CROWLEY, TL
[J]. MACROMOLECULES, 1987, 20 (11) : 2879 - 2882
[6] DRIVEN EQUILIBRIUM SOLID AND LIQUID SPIN-ECHO NMR SEQUENCES
COSGROVE, T
BARNETT, KG
[J]. JOURNAL OF MAGNETIC RESONANCE, 1981, 43 (01) : 15 - 20
[7] COMPARISON OF ADSORBED LAYER THICKNESS OBTAINED BY SEVERAL TECHNIQUES OF VARIOUS MOLECULAR-WEIGHT FRACTIONS OF POLYVINYL-ALCOHOL) ON AQUEOUS POLYSTYRENE LATEX-PARTICLES
GARVEY, MJ
TADROS, TF
VINCENT, B
[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1976, 55 (02) : 440 - 453
[8] THEORY OF INTRAMOLECULAR SPIN RELAXATION BY TRANSLATIONAL DIFFUSION IN LOCALLY ORDERED FLUIDS .2. FURTHER RESULTS FOR SYSTEMS WITH PLANAR INTERFACES
HALLE, B
[J]. MOLECULAR PHYSICS, 1985, 56 (01) : 209 - 221
[9] HALLE B, 1984, J CHEM SOC F1, V82
[10] PROTEIN ROTATIONAL RELAXATION AS STUDIED BY SOLVENT H-1 AND H-2 MAGNETIC-RELAXATION
HALLENGA, K
KOENIG, SH
[J]. BIOCHEMISTRY, 1976, 15 (19) : 4255 - 4264

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