Impact of Block Length and Temperature over Self-Assembling Behavior of Block Copolymers
Self-assembling behavior of block copolymers having water-soluble portion as one of the blocks plays key role in the properties and applications of the copolymers. Therefore, we have synthesized block copolymers of different block length and investigated their self-assembling behavior with reference...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2016/6732790 |
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| author | Samia A. Kosa Laila M. Al-Harbi Musa Kaleem Baloch Irfan Ullah Elsayed H. El-Mossalamy |
| author_facet | Samia A. Kosa Laila M. Al-Harbi Musa Kaleem Baloch Irfan Ullah Elsayed H. El-Mossalamy |
| author_sort | Samia A. Kosa |
| collection | DOAJ |
| description | Self-assembling behavior of block copolymers having water-soluble portion as one of the blocks plays key role in the properties and applications of the copolymers. Therefore, we have synthesized block copolymers of different block length and investigated their self-assembling behavior with reference to concentration and temperature using surface tension and conductance measurement techniques. The results obtained through both techniques concluded that critical micelles concentration (CMC) was decreased from 0.100 to 0.078 g/dL with the increase in length of water insoluble block and 0.100 to 0.068 g/dL for the increased temperature. ΔGmic was also decreased with the increase in temperature of the system, concluding that the micellization process was encouraged with the increase in temperature and block length. However, ΔHmic values were highest for short block length copolymer. The surface excess concentration obtained from surface tension data concluded that it was highest for short block length and vice versa and was increased with the increase in temperature of the system. However, the minimum area per molecule was largest for highest molecular weight copolymers or having longest water insoluble block and decreases with the increase in temperature. |
| format | Article |
| id | doaj-art-bbdcd85d21a54b538ffe3e634d20cab9 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-bbdcd85d21a54b538ffe3e634d20cab92025-02-03T06:44:35ZengWileyInternational Journal of Polymer Science1687-94221687-94302016-01-01201610.1155/2016/67327906732790Impact of Block Length and Temperature over Self-Assembling Behavior of Block CopolymersSamia A. Kosa0Laila M. Al-Harbi1Musa Kaleem Baloch2Irfan Ullah3Elsayed H. El-Mossalamy4Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaDepartment of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi ArabiaDepartment of Chemistry, University of Sargodha Sub-Campus Bhakkar, Bhakkar, PakistanDepartment of Chemistry, University of Sargodha Sub-Campus Bhakkar, Bhakkar, PakistanDepartment of Chemistry, Faculty of Science, Benha University, Benha, EgyptSelf-assembling behavior of block copolymers having water-soluble portion as one of the blocks plays key role in the properties and applications of the copolymers. Therefore, we have synthesized block copolymers of different block length and investigated their self-assembling behavior with reference to concentration and temperature using surface tension and conductance measurement techniques. The results obtained through both techniques concluded that critical micelles concentration (CMC) was decreased from 0.100 to 0.078 g/dL with the increase in length of water insoluble block and 0.100 to 0.068 g/dL for the increased temperature. ΔGmic was also decreased with the increase in temperature of the system, concluding that the micellization process was encouraged with the increase in temperature and block length. However, ΔHmic values were highest for short block length copolymer. The surface excess concentration obtained from surface tension data concluded that it was highest for short block length and vice versa and was increased with the increase in temperature of the system. However, the minimum area per molecule was largest for highest molecular weight copolymers or having longest water insoluble block and decreases with the increase in temperature.http://dx.doi.org/10.1155/2016/6732790 |
| spellingShingle | Samia A. Kosa Laila M. Al-Harbi Musa Kaleem Baloch Irfan Ullah Elsayed H. El-Mossalamy Impact of Block Length and Temperature over Self-Assembling Behavior of Block Copolymers International Journal of Polymer Science |
| title | Impact of Block Length and Temperature over Self-Assembling Behavior of Block Copolymers |
| title_full | Impact of Block Length and Temperature over Self-Assembling Behavior of Block Copolymers |
| title_fullStr | Impact of Block Length and Temperature over Self-Assembling Behavior of Block Copolymers |
| title_full_unstemmed | Impact of Block Length and Temperature over Self-Assembling Behavior of Block Copolymers |
| title_short | Impact of Block Length and Temperature over Self-Assembling Behavior of Block Copolymers |
| title_sort | impact of block length and temperature over self assembling behavior of block copolymers |
| url | http://dx.doi.org/10.1155/2016/6732790 |
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