Properties and influence of hydrophobically associating polyacrylamide modified with 2-phenoxylethylacrylate

被引：3

作者：

Dai Y.-H. ^{[1
]}

Wu F.-P. ^{[2
]}

Li M.-Z. ^{[2
]}

Wang E.-J. ^{[2
]}

机构：

[1] Department of Materials Science and Engineering, Beijing Institute of Petrochemical Technology

[2] Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

来源：

Frontiers of Materials Science in China | 2008年 / 2卷 / 1期

关键词：

Copolymer P(acrylamide/2-phenoxylethylacrylate); Solution properties; Viscosity; Water-soluble polymers;

D O I：

10.1007/s11706-008-0020-x

中图分类号：

学科分类号：

摘要：

The properties of hydrophobically associating copolymer P(acrylamide (AM)/2-phenoxylethylacrylate (POEA)), composed of acrylamide and a small amount of POEA (1.0 mol.%) as hydrophobe, were investigated in aqueous solution under various conditions. The results showed that the solution properties were strongly affected by the microstructure of copolymer. The copolymers (BP series) with hydrophobic microblocky structure exhibited large viscosity enhancement due to the intermolecular hydrophobic association, while that did not occur for the random copolymers (RP series). The hydrophobic association thickening behaviors were also remarkably dependent on the number and length of the hydrophobic block in polymer chain. Nonlinear viscosity relationship was found as increasing hydrophobe content and SMR (surfactant/hydrophobic monomer molar ratio), and a maximum appeared at the middle position as a result of the competitive effect between inter- and intra- molecular hydrophobic associations. Solution properties were further studied as a function of the polymer concentration, salinity, temperature and shear rate. The block copolymers show high salt tolerance and shear thinning as well as recovery after shear. © 2008 Higher Education Press.

引用

页码：113 / 118

页数：5

共 25 条

[1]

Selb J., Candau F., Iner-and intra-molecular aggregation of associating polymers in water, ACS Symposium Series, 765, pp. 95-108, (2000)

[2]

Annable T., Buscall R., Ettelaie R., Alexandridis P., Lindman B., Rheology of transient networks formed by the association of hydrophobically modified water soluble polymers, Amphiphilic Block Copolymers, Self-assembly and Applications, pp. 281-304, (2000)

[3]

Hashidzume A., Noda T., Morishima Y., Stimuli-responsive associative behavior polyelectrolyte-bound nonionic surfanctant moieties in aqueous media, ACS Symposium Series, 780, pp. 14-37, (2001)

[4]

Molchanov V.S., Philippova O.E., Khokhlov A.R., Et al., Selfassembled networks highly responsive to hydrocarbons, Langmuir, 23, pp. 105-111, (2007)

[5]

Miquelard-Garnier G., Demoures S., Creton C., Et al., Synthesis and rheological behavior of new hydrophobically modified hydrogels with tunable properties, Macromolecules, 39, pp. 8128-8139, (2006)

[6]

Kujawa P., Audibert-Hayet A., Selb J., Et al., Effect of ionic strength on the rheological properties of multisticker associative polyelectrolytes, Macromolecules, 39, pp. 384-392, (2006)

[7]

Biggs S., Hill A., Selb J., Et al., Copolymerization of acrylamide and an hydrophobic monomer in an aqueous micellar medium: Effect of the surfactant on the copolymer microstructure, The Journal of Physical Chemistry, 96, pp. 1505-1511, (1992)

[8]

Chang Y.H., McCormick C.L., Water-soluble copolymers. 49. Effect of the distribution of the hydrophobic cationic monomer dimethyldodecyl(2-acrylamidoethyl)ammonium bromide on the solution behavior of associating acrylamide copolymers, Macromolecules, 26, pp. 6121-6126, (1993)

[9]

Regalado E.J., Selb J., Candau F., Viscoelastic behavior of semidilute solutions of multisticker polymer chains, Macromolecules, 32, pp. 8580-8588, (1999)

[10]

Candau F., Selb J., Hydrophobically-modified polyacrylamides prepared by micellar polymerization, Advances in Colloid and Interface Science, 79, pp. 149-172, (1999)

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