Modification of the air-water interface by a chitosan adsorption process.: Effect on an amphiphilic polymer monolayer

被引：10

作者：

Gargallo, L ^{[1
]}

Leiva, A ^{[1
]}

Urzúa, M ^{[1
]}

Alegría, L ^{[1
]}

Miranda, B ^{[1
]}

Radic, D ^{[1
]}

机构：

[1] Pontificia Univ Catolica Chile, Dept Quim Fis, Fac Quim 502, Santiago 22, Chile

来源：

POLYMER INTERNATIONAL | 2004年 / 53卷 / 11期

关键词：

Langmuir monolayer; chitosan; interfacial tension; degree of acetylation; standard free energy of adsorption;

D O I：

10.1002/pi.1474

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Monolayer formation by poly[(maleic anhydride)-alt-(stearyl methacrylate)] (MA-alt-StM) on aqueous subphases, with and without chitosan, was studied by the Langmuir technique. Chitosan (CS) modified considerably the shape of the MA-alt-StM isotherms on water. To explain this behavior, the surface activity properties of chitosan at the air-solution interface were studied. The variations of the interfacial tension, gamma(int), with chitosan concentration and temperature, were also determined. The results were discussed in terms of the modification of the air-water interface owing to the presence of chitosan in the subphase and the surface activity. It was found that the standard free energy of adsorption, DeltaG(ads)(0),values were dependent on the degree of acetylation (DA) over the DA range being studied. (C) 2004 Society of Chemical Industry.

引用

页码：1652 / 1657

页数：6

共 50 条

[21] Polymer Behavior at the Air-Water Interface
Gargallo, Ligia
MRS BULLETIN, 2010, 35 (08) : 615 - 622
[22] Polymer Behavior at the Air-Water Interface
Ligia Gargallo
MRS Bulletin, 2010, 35 : 615 - 622
[23] Effect of Urea and Glycerol on the Adsorption of Ribonuclease A at the Air-Water Interface
Huesecken, Anne K.
Evers, Florian
Czeslik, Claus
Tolan, Metin
LANGMUIR, 2010, 26 (16) : 13429 - 13435
[24] Effect of salt on the adsorption of ionic surfactants at the air-water interface
Tiwari, Shubham
Namsani, Sadanandam
Singh, Jayant K.
JOURNAL OF MOLECULAR LIQUIDS, 2022, 360
[25] Effect of surfactant structure on the adsorption of carboxybetaines at the air-water interface
Delgado, Cristina
Merchan, M. Dolores
Velazquez, M. Mercedes
Anaya, Josefa
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2006, 280 (1-3) : 17 - 22
[26] Effect of contaminant on adsorption of whey proteins at the air-water interface
Cornec, M
Narsimhan, G
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1998, 46 (07) : 2490 - 2498
[27] Novel pattern formation in the collapse process of floating monolayer at the air-water interface
E. Hatta
H. Hosoi
H. Akiyama
T. Ishii
K. Mukasa
The European Physical Journal B - Condensed Matter and Complex Systems, 1998, 2 : 347 - 349
[28] Novel pattern formation in the collapse process of floating monolayer at the air-water interface
Hatta, E
Hosoi, H
Akiyama, H
Ishii, T
Mukasa, K
EUROPEAN PHYSICAL JOURNAL B, 1998, 2 (03): : 347 - 349
[29] Dynamics of amphiphilic diblock copolymers at the air-water interface
Stocco, Antonio
Tauer, Klaus
Pispas, Stergios
Sigel, Reinhard
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2011, 355 (01) : 172 - 178
[30] MONOLAYER CHARACTERISTICS AND CALCIUM ADSORPTION TO CEREBROSIDE AND CEREBROSIDE SULPHATE ORIENTED AT AIR-WATER INTERFACE
QUINN, PJ
SHERMAN, WR
BIOCHIMICA ET BIOPHYSICA ACTA, 1971, 233 (03) : 734 - &

← 1 2 3 4 5 →