Unprecedented Adhesive Performance of Propylene-Based Hydroxyl Functionalized Terpolymers

Jakub Kruszyński; Weronika Nowicka; Miloud Bouyahyi; Yingxin Liu; Lanti Yang; Artur Rozanski; Nithish Anbuchezhian; Lidia Jasińska-Walc; Rob Duchateau

doi:10.1021/acsapm.3c00566

Unprecedented Adhesive Performance of Propylene-Based Hydroxyl Functionalized Terpolymers

Abstrakt

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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Publikacja w czasopiśmie

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artykuły w czasopismach

Opublikowano w:

ACS Applied Polymer Materials nr 5, strony 3875 - 3882,
ISSN:

Język:

angielski

Rok wydania:

2023

Opis bibliograficzny:

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

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