Investigation of the Effect of Temperature on the Structure of the Polyacrylic Acid Adsorption Layer at a Controlled Porosity Glass/Polymer Solution Interface
The influence of temperature on the structure of polyacrylic acid (PAA) adsorption layers on the surface of controlled porosity glass (CPG) was studied. For this purpose, adsorption, surface charge, zeta potential and viscosity measurements were carried out over the 15–35°C temperature range. The am...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2008-02-01
|
| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/026361708786035387 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846097987710746624 |
|---|---|
| author | Malgorzata Wiśniewska |
| author_facet | Malgorzata Wiśniewska |
| author_sort | Malgorzata Wiśniewska |
| collection | DOAJ |
| description | The influence of temperature on the structure of polyacrylic acid (PAA) adsorption layers on the surface of controlled porosity glass (CPG) was studied. For this purpose, adsorption, surface charge, zeta potential and viscosity measurements were carried out over the 15–35°C temperature range. The amounts of adsorbed polymer and the thickness of the polymer adsorption layer increase with increasing temperature. This is caused by conformational changes in the polymer macromolecules with increasing temperature, changing from a coiled structure at lower temperature to a more stretched structure at higher temperature. The free energies of the PAA segments adsorbed onto the CPG surface at 25°C were calculated from the adsorption data. Decreases in the charges on the surface and diffuse layers of CPG particles were observed in the presence of PAA. On the basis on these data, proposals have been made regarding the main factors causing the changes in the zeta potential and surface charge of CPG in the presence of polymer. |
| format | Article |
| id | doaj-art-848e6a0b750449bd9d7fdb8731689967 |
| institution | Kabale University |
| issn | 0263-6174 2048-4038 |
| language | English |
| publishDate | 2008-02-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj-art-848e6a0b750449bd9d7fdb87316899672025-01-02T02:57:50ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382008-02-012610.1260/026361708786035387Investigation of the Effect of Temperature on the Structure of the Polyacrylic Acid Adsorption Layer at a Controlled Porosity Glass/Polymer Solution InterfaceMalgorzata WiśniewskaThe influence of temperature on the structure of polyacrylic acid (PAA) adsorption layers on the surface of controlled porosity glass (CPG) was studied. For this purpose, adsorption, surface charge, zeta potential and viscosity measurements were carried out over the 15–35°C temperature range. The amounts of adsorbed polymer and the thickness of the polymer adsorption layer increase with increasing temperature. This is caused by conformational changes in the polymer macromolecules with increasing temperature, changing from a coiled structure at lower temperature to a more stretched structure at higher temperature. The free energies of the PAA segments adsorbed onto the CPG surface at 25°C were calculated from the adsorption data. Decreases in the charges on the surface and diffuse layers of CPG particles were observed in the presence of PAA. On the basis on these data, proposals have been made regarding the main factors causing the changes in the zeta potential and surface charge of CPG in the presence of polymer.https://doi.org/10.1260/026361708786035387 |
| spellingShingle | Malgorzata Wiśniewska Investigation of the Effect of Temperature on the Structure of the Polyacrylic Acid Adsorption Layer at a Controlled Porosity Glass/Polymer Solution Interface Adsorption Science & Technology |
| title | Investigation of the Effect of Temperature on the Structure of the Polyacrylic Acid Adsorption Layer at a Controlled Porosity Glass/Polymer Solution Interface |
| title_full | Investigation of the Effect of Temperature on the Structure of the Polyacrylic Acid Adsorption Layer at a Controlled Porosity Glass/Polymer Solution Interface |
| title_fullStr | Investigation of the Effect of Temperature on the Structure of the Polyacrylic Acid Adsorption Layer at a Controlled Porosity Glass/Polymer Solution Interface |
| title_full_unstemmed | Investigation of the Effect of Temperature on the Structure of the Polyacrylic Acid Adsorption Layer at a Controlled Porosity Glass/Polymer Solution Interface |
| title_short | Investigation of the Effect of Temperature on the Structure of the Polyacrylic Acid Adsorption Layer at a Controlled Porosity Glass/Polymer Solution Interface |
| title_sort | investigation of the effect of temperature on the structure of the polyacrylic acid adsorption layer at a controlled porosity glass polymer solution interface |
| url | https://doi.org/10.1260/026361708786035387 |
| work_keys_str_mv | AT malgorzatawisniewska investigationoftheeffectoftemperatureonthestructureofthepolyacrylicacidadsorptionlayeratacontrolledporosityglasspolymersolutioninterface |