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| Main Authors: | , , , , , , , |
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| Format: | Artículo Open Access |
| Published: |
Wiley
2025
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| Subjects: | |
| Online Access: | https://onlinelibrary.wiley.com/doi/10.1002/app.57739 |
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Table of Contents:
- Interface Fusion Adhesion of Bio‐Polyols Based Polyurethane Dispersion to Swollen Untreated Crosslinked Butyl Rubber Shuai Zhao Qian Wang Youlin Si Lei Chen Haoyu Zhong Yuexin Jiang Jianming Han Shuquan Sun Journal of Applied Polymer Science ABSTRACT Environmentally friendly bio‐based polyurethane dispersions (PUDs) could be rationally designed using bio‐based polyols with diverse alkane chains and polar groups, which could be candidates to coat untreated crosslinked butyl rubber. In this work, a series of bio‐PUDs based on poly(1,3‐trimethylene carbonate) diol (PTMC‐OH) and its copolyols with caprolactone (PTMC‐PCL‐OH) and tetrahydrofuran (PTMC‐PTMEG‐OH) were synthesized with excellent adhesion to the pristine swollen vulcanized brominated butyl rubber. The swollen surface of brominated butyl rubber is composed of crosslinked alkane chains with C–S and H–C–Br bonds. The crosslinked alkane chains in rubbers promote their interfacial fusion with bio‐PUDs, and the H atom of H–C–Br units could be the anchor sites for the polar groups of bio‐PUDs to bond. In addition, perfluoropolyether glycol (E10‐H) was introduced into the bio‐based PUDs to provide a hydrophobic surface and further verify the fusion adhesion process, due to perfluoropolyether chains being immiscible with crosslinked brominated butyl rubber. It is remarkable that 5% E10‐H introduced into bio‐based PUDs could keep good adhesion and hydrophobic properties with a contact angle above 92.861°. The fusion adhesion method will inspire potential coating material structure rational design for crosslinked soft substrates and expand a new application field for bio‐based polymer. 10.1002/app.57739 http://onlinelibrary.wiley.com/termsAndConditions#vor