Abstract
The synthesis of hydroxyl functionalized propylene-based terpolymers and their performance as hot melt adhesives were investigated. The products comprise uniformly distributed butyl and 4-hydroxyl-butyl branches along the polypropylene backbone. Despite the low hydroxyl-functionality level of ≤ 0.5 mol%, hydroxyl functionalized terpolymers show formidable adhesion to aluminum and steel providing an adhesive strength exceeding 16 MPa, whereas the non-functionalized congeners hardly adhere to these metals. As evidenced by rheological measurements, the functional groups form dynamic cross-links based on hydrogen bonding and electrostatic interactions with aluminum oxide hydroxide residues, remaining in the product after polymerization. At the industrial application temperature of 180 °C, non-deashed and deashed samples of polymers having 0.1 mol% or 0.5 mol% of incorporated 5-hexen-1-ol gave, upon cooling to room temperature, comparable adhesive strengths. Deashing and increasing the functionality level leads to a significant improvement of the adhesion strength at lower application temperature (130 °C), allowing application of the hydroxyl functionalized propylene-based terpolymers as high strength hot melt adhesive for combinations of polypropylene and metals.
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ACS Applied Polymer Materials
no. 5,
pages 3875 - 3882,
ISSN: - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Kruszyński J., Nowicka W., Bouyahyi M., Liu Y., Yang L., Rozanski A., Anbuchezhian N., Jasińska-Walc L., Duchateau R.: Unprecedented Adhesive Performance of Propylene-Based Hydroxyl Functionalized Terpolymers// ACS Applied Polymer Materials -Vol. 5,iss. 5 (2023), s.3875-3882
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acsapm.3c00566
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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