A strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealants
A new hydroxy-silane coupling agent was synthesized from 3-butene-1-alcohol and mercaptopropyl-3-methoxysilane based on a click reaction between double bonds and sulfhydryl groups and was successfully used in the synthesis of silane-modified polyether (STPE). The effect of molecular weight of polypr...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2023-10-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0170749 |
| _version_ | 1797634146529443840 |
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| author | Yinhe Li Zhiqiang Guo Shunfa Ma Rumeng Tian Xingjiang Liu Liuhe Wei |
| author_facet | Yinhe Li Zhiqiang Guo Shunfa Ma Rumeng Tian Xingjiang Liu Liuhe Wei |
| author_sort | Yinhe Li |
| collection | DOAJ |
| description | A new hydroxy-silane coupling agent was synthesized from 3-butene-1-alcohol and mercaptopropyl-3-methoxysilane based on a click reaction between double bonds and sulfhydryl groups and was successfully used in the synthesis of silane-modified polyether (STPE). The effect of molecular weight of polypropylene glycol (PPG) on the properties of silane-modified polyether was studied. It was found that with the increase in PPG molecular weight, the initial thermal decomposition temperature and hardness of STPE elastomers decreased, but the molecular structure hardly changed. In addition, with the increase in molecular weight, the elongation at break of the elastomer will gradually increase, but the tensile strength of the elastomer does not change much. When the molecular weight reaches 20 000 g/mol, the resin with a viscosity of 1.6 × 105 mPa s can be obtained, and the elongation at break of the cured elastomer reaches 383.4% and the tensile strength is 0.25 MPa. After the STPE resin was prepared into a silane modified sealant, the tensile strength reached 1.31 MPa and the elongation at break reached 406.2%, which had the best mechanical properties among the prepared sealants. This shows that the sealant prepared from high molecular weight resin has stronger mechanical properties, which provides a new idea for the preparation of sealants. |
| first_indexed | 2024-03-11T12:03:28Z |
| format | Article |
| id | doaj.art-38577305ccbe4281b895200a8a6c31e0 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-03-11T12:03:28Z |
| publishDate | 2023-10-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-38577305ccbe4281b895200a8a6c31e02023-11-07T17:47:01ZengAIP Publishing LLCAIP Advances2158-32262023-10-011310105129105129-910.1063/5.0170749A strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealantsYinhe Li0Zhiqiang Guo1Shunfa Ma2Rumeng Tian3Xingjiang Liu4Liuhe Wei5Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, ChinaGreen Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, ChinaHenan Aojia Flame Retardant Technology Co., Ltd., Zhengzhou, Henan Province 450000, ChinaGreen Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, ChinaGreen Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, ChinaGreen Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, ChinaA new hydroxy-silane coupling agent was synthesized from 3-butene-1-alcohol and mercaptopropyl-3-methoxysilane based on a click reaction between double bonds and sulfhydryl groups and was successfully used in the synthesis of silane-modified polyether (STPE). The effect of molecular weight of polypropylene glycol (PPG) on the properties of silane-modified polyether was studied. It was found that with the increase in PPG molecular weight, the initial thermal decomposition temperature and hardness of STPE elastomers decreased, but the molecular structure hardly changed. In addition, with the increase in molecular weight, the elongation at break of the elastomer will gradually increase, but the tensile strength of the elastomer does not change much. When the molecular weight reaches 20 000 g/mol, the resin with a viscosity of 1.6 × 105 mPa s can be obtained, and the elongation at break of the cured elastomer reaches 383.4% and the tensile strength is 0.25 MPa. After the STPE resin was prepared into a silane modified sealant, the tensile strength reached 1.31 MPa and the elongation at break reached 406.2%, which had the best mechanical properties among the prepared sealants. This shows that the sealant prepared from high molecular weight resin has stronger mechanical properties, which provides a new idea for the preparation of sealants.http://dx.doi.org/10.1063/5.0170749 |
| spellingShingle | Yinhe Li Zhiqiang Guo Shunfa Ma Rumeng Tian Xingjiang Liu Liuhe Wei A strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealants AIP Advances |
| title | A strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealants |
| title_full | A strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealants |
| title_fullStr | A strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealants |
| title_full_unstemmed | A strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealants |
| title_short | A strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealants |
| title_sort | strategy for synthesis of silane terminated polyether triggered by click reaction and its application in preparation of modified silane sealants |
| url | http://dx.doi.org/10.1063/5.0170749 |
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