Study of Molecular Interactions of Water- Soluble Polymer at Several Temperatures in Solution
Molecular interactions between 2-isopropenylnaphthalene-methacrylic acid (IPNMA) block copolymer( as a model for water- soluble polymer) and methanol at several temperatures were studied using fluorescence techniques , Fluorescence spectrum for (IPNMA) exhibits two emission bands at around...
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| Format: | Article |
| Language: | English |
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University of Baghdad, College of Science for Women
2009-12-01
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| Series: | مجلة بغداد للعلوم |
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| Online Access: | http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1041 |
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| author | Baghdad Science Journal |
| author_facet | Baghdad Science Journal |
| author_sort | Baghdad Science Journal |
| collection | DOAJ |
| description | Molecular interactions between 2-isopropenylnaphthalene-methacrylic acid (IPNMA) block copolymer( as a model for water- soluble polymer) and methanol at several temperatures were studied using fluorescence techniques , Fluorescence spectrum for (IPNMA) exhibits two emission bands at around 342 nm and 387 nm corresponding to the monomer and the excimer bands , respectively .The fluorescence spectra of dilute solution of (IPNMA) in methanol were recorded in temperature range of 8- 45?C . Plot of the excimer to monomer intensity ratio Ie/Im versus temperature was obtained, which shows double lines with positive slopes crossing at 25?C , the increasing of slope value above this temperature is small which indicates that there is stronger solvation of methanol molecules to polymer coil at temperature below 25? C arising from hydrogen bond formation between the polymer and the solvent . |
| format | Article |
| id | doaj-art-25ec70b8015b41ba8576496dbd3d65c2 |
| institution | Kabale University |
| issn | 2078-8665 2411-7986 |
| language | English |
| publishDate | 2009-12-01 |
| publisher | University of Baghdad, College of Science for Women |
| record_format | Article |
| series | مجلة بغداد للعلوم |
| spelling | doaj-art-25ec70b8015b41ba8576496dbd3d65c22025-08-20T03:33:18ZengUniversity of Baghdad, College of Science for Womenمجلة بغداد للعلوم2078-86652411-79862009-12-016410.21123/bsj.6.4.757-762Study of Molecular Interactions of Water- Soluble Polymer at Several Temperatures in SolutionBaghdad Science JournalMolecular interactions between 2-isopropenylnaphthalene-methacrylic acid (IPNMA) block copolymer( as a model for water- soluble polymer) and methanol at several temperatures were studied using fluorescence techniques , Fluorescence spectrum for (IPNMA) exhibits two emission bands at around 342 nm and 387 nm corresponding to the monomer and the excimer bands , respectively .The fluorescence spectra of dilute solution of (IPNMA) in methanol were recorded in temperature range of 8- 45?C . Plot of the excimer to monomer intensity ratio Ie/Im versus temperature was obtained, which shows double lines with positive slopes crossing at 25?C , the increasing of slope value above this temperature is small which indicates that there is stronger solvation of methanol molecules to polymer coil at temperature below 25? C arising from hydrogen bond formation between the polymer and the solvent .http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1041"fluorescence spectroscopy , excimer , molecular interaction , polymer conformation, temperature- dependence " |
| spellingShingle | Baghdad Science Journal Study of Molecular Interactions of Water- Soluble Polymer at Several Temperatures in Solution مجلة بغداد للعلوم "fluorescence spectroscopy , excimer , molecular interaction , polymer conformation, temperature- dependence " |
| title | Study of Molecular Interactions of Water- Soluble Polymer at Several Temperatures in Solution |
| title_full | Study of Molecular Interactions of Water- Soluble Polymer at Several Temperatures in Solution |
| title_fullStr | Study of Molecular Interactions of Water- Soluble Polymer at Several Temperatures in Solution |
| title_full_unstemmed | Study of Molecular Interactions of Water- Soluble Polymer at Several Temperatures in Solution |
| title_short | Study of Molecular Interactions of Water- Soluble Polymer at Several Temperatures in Solution |
| title_sort | study of molecular interactions of water soluble polymer at several temperatures in solution |
| topic | "fluorescence spectroscopy , excimer , molecular interaction , polymer conformation, temperature- dependence " |
| url | http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1041 |
| work_keys_str_mv | AT baghdadsciencejournal studyofmolecularinteractionsofwatersolublepolymeratseveraltemperaturesinsolution |