Rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groups
For the first time the results of a rheokinetic study on the interaction of an oligodienuerethane prepolymer with glycerol under excessive content of isocyanate groups [NCO/OH = 1.5 (mol/mol)] are presented. It was found that, when conversion degree х ≈ 30 %, the interaction of isocyanate and hydrox...
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| Formatua: | Artikulua |
| Hizkuntza: | Russian |
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MIREA - Russian Technological University
2012-10-01
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| Saila: | Тонкие химические технологии |
| Gaiak: | |
| Sarrera elektronikoa: | https://www.finechem-mirea.ru/jour/article/view/702 |
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| author | I. A. Novakov D. V. Pyl’Nov A. V. Nistratov M. A. Vaniev V. P. Medvedev E. V. Petrosyan |
| author_facet | I. A. Novakov D. V. Pyl’Nov A. V. Nistratov M. A. Vaniev V. P. Medvedev E. V. Petrosyan |
| author_sort | I. A. Novakov |
| collection | DOAJ |
| description | For the first time the results of a rheokinetic study on the interaction of an oligodienuerethane prepolymer with glycerol under excessive content of isocyanate groups [NCO/OH = 1.5 (mol/mol)] are presented. It was found that, when conversion degree х ≈ 30 %, the interaction of isocyanate and hydroxyl groups is governed by the first order equation with adiabatic self-acceleration. Then (at х > 30 %) the curing process is described by the second order equation. A specific feature of the studied interactions is that, while temperature increases to 50 ° C, the role of the curing catalysts at the final stage is played by urethane and allophanate groups. |
| first_indexed | 2024-04-10T03:31:26Z |
| format | Article |
| id | doaj.art-f99c901b654347e8930bc184b17dc37a |
| institution | Directory Open Access Journal |
| issn | 2410-6593 2686-7575 |
| language | Russian |
| last_indexed | 2025-03-14T10:41:45Z |
| publishDate | 2012-10-01 |
| publisher | MIREA - Russian Technological University |
| record_format | Article |
| series | Тонкие химические технологии |
| spelling | doaj.art-f99c901b654347e8930bc184b17dc37a2025-03-02T10:57:29ZrusMIREA - Russian Technological UniversityТонкие химические технологии2410-65932686-75752012-10-01758995696Rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groupsI. A. Novakov0D. V. Pyl’Nov1A. V. Nistratov2M. A. Vaniev3V. P. Medvedev4E. V. Petrosyan5Волгоградский государственный технический университетВолгоградский государственный технический университетООО «ЛКМ-Групп», РоссияВолгоградский государственный технический университетВолгоградский государственный технический университетВолгоградский государственный технический университетFor the first time the results of a rheokinetic study on the interaction of an oligodienuerethane prepolymer with glycerol under excessive content of isocyanate groups [NCO/OH = 1.5 (mol/mol)] are presented. It was found that, when conversion degree х ≈ 30 %, the interaction of isocyanate and hydroxyl groups is governed by the first order equation with adiabatic self-acceleration. Then (at х > 30 %) the curing process is described by the second order equation. A specific feature of the studied interactions is that, while temperature increases to 50 ° C, the role of the curing catalysts at the final stage is played by urethane and allophanate groups.https://www.finechem-mirea.ru/jour/article/view/702реокинетикаолигодиенуретановый форполимерглицеринуравнение первого порядка с адиабатическим автоускорениемуравнение второго порядка с эффектом автоускоренияrheokineticsoligodienurethane prepolymerglycerolfirst order equation with adiabatic self-accelerationsecond order equation with self-acceleration effect |
| spellingShingle | I. A. Novakov D. V. Pyl’Nov A. V. Nistratov M. A. Vaniev V. P. Medvedev E. V. Petrosyan Rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groups Тонкие химические технологии реокинетика олигодиенуретановый форполимер глицерин уравнение первого порядка с адиабатическим автоускорением уравнение второго порядка с эффектом автоускорения rheokinetics oligodienurethane prepolymer glycerol first order equation with adiabatic self-acceleration second order equation with self-acceleration effect |
| title | Rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groups |
| title_full | Rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groups |
| title_fullStr | Rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groups |
| title_full_unstemmed | Rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groups |
| title_short | Rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groups |
| title_sort | rheokinetic study on catalytic curing of oligodienurethane prepolymer with glycerol under the conditions of an excess of isocyanate groups |
| topic | реокинетика олигодиенуретановый форполимер глицерин уравнение первого порядка с адиабатическим автоускорением уравнение второго порядка с эффектом автоускорения rheokinetics oligodienurethane prepolymer glycerol first order equation with adiabatic self-acceleration second order equation with self-acceleration effect |
| url | https://www.finechem-mirea.ru/jour/article/view/702 |
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