Cyclic polyesters prepared by poly(oxypropylene oxymaloyl) ring-chain reactions
The synthesis of cyclic polyesters of poly(oxypropylene oxymaloyl) from a ring-chain reaction was carried out at 40°C with 'Maghnite' an acid exchanged montmorillonite as acid solid ecocatalyst (Mag–H+). 'Maghnite' is already used as catalyst for polymerization of many vinylic an...
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| Format: | Article |
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| Language: | English |
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Budapest University of Technology and Economics
2007-01-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0000015&mi=cd |
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| description | The synthesis of cyclic polyesters of poly(oxypropylene oxymaloyl) from a ring-chain reaction was carried out at 40°C with 'Maghnite' an acid exchanged montmorillonite as acid solid ecocatalyst (Mag–H+). 'Maghnite' is already used as catalyst for polymerization of many vinylic and heterocyclic monomers [1]. The effect of amount of catalyst on yield and molecular weight of polymer was studied.A typical reaction product was analyzed by gel permeation chromatography (GPC) as well as by nuclear magnetic resonance spectroscopy (1H-NMR) and the existence of cyclic species was proven. |
| format | Article |
| id | doaj-art-8d9ae12aef3d47d6ba61830b55ab49b2 |
| institution | Kabale University |
| issn | 1788-618X |
| language | English |
| publishDate | 2007-01-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-8d9ae12aef3d47d6ba61830b55ab49b22025-08-20T03:56:55ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2007-01-0111242610.3144/expresspolymlett.2007.5Cyclic polyesters prepared by poly(oxypropylene oxymaloyl) ring-chain reactionsThe synthesis of cyclic polyesters of poly(oxypropylene oxymaloyl) from a ring-chain reaction was carried out at 40°C with 'Maghnite' an acid exchanged montmorillonite as acid solid ecocatalyst (Mag–H+). 'Maghnite' is already used as catalyst for polymerization of many vinylic and heterocyclic monomers [1]. The effect of amount of catalyst on yield and molecular weight of polymer was studied.A typical reaction product was analyzed by gel permeation chromatography (GPC) as well as by nuclear magnetic resonance spectroscopy (1H-NMR) and the existence of cyclic species was proven.http://www.expresspolymlett.com/letolt.php?file=EPL-0000015&mi=cdPolymer synthesis, molecular eMaghniteMontmorillonite |
| spellingShingle | Cyclic polyesters prepared by poly(oxypropylene oxymaloyl) ring-chain reactions eXPRESS Polymer Letters Polymer synthesis, molecular e Maghnite Montmorillonite |
| title | Cyclic polyesters prepared by poly(oxypropylene oxymaloyl) ring-chain reactions |
| title_full | Cyclic polyesters prepared by poly(oxypropylene oxymaloyl) ring-chain reactions |
| title_fullStr | Cyclic polyesters prepared by poly(oxypropylene oxymaloyl) ring-chain reactions |
| title_full_unstemmed | Cyclic polyesters prepared by poly(oxypropylene oxymaloyl) ring-chain reactions |
| title_short | Cyclic polyesters prepared by poly(oxypropylene oxymaloyl) ring-chain reactions |
| title_sort | cyclic polyesters prepared by poly oxypropylene oxymaloyl ring chain reactions |
| topic | Polymer synthesis, molecular e Maghnite Montmorillonite |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0000015&mi=cd |