Surface investigation of adhesive formulation consisting of UV sensitive triblock poly(styrene–b-butadiene–b-styrene) copolymer

Staeger, Maud; Finot, Éric; Brachais, Claire‐Hélène; Auguste, Stéphane; Durand, Hervé

doi:10.1016/s0169-4332(01)00788-7

Cited by 17 publications

(8 citation statements)

References 16 publications

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“…Observations supporting our findings have already been discussed in literature. Staeger et al, for example, investigated the nanomechanical properties of poly(styrene- b -butadiene- b -styrene) triblock copolymers with different copolymer formulations and the impact of UV light exposure . As a result, the surface stiffness and the adhesive properties were strongly influenced but the surface energy determined with contact angle measurements was unchanged.…”

Section: Resultsmentioning

confidence: 99%

Tailoring the near-Surface Composition Profiles of Pressure-Sensitive Adhesive Films and the Resulting Mechanical Properties

Diethert

Ecker

Peykova

et al. 2011

ACS Appl. Mater. Interfaces

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We present a possibility of tailoring the near-surface composition profiles of pressure sensitive adhesive (PSA) films by an exposure to atmospheres of different relative humidities (RHs). The statistical copolymer P(EHA-stat-20MMA) with a majority of ethylhexylacrylate (EHA) and a minority of methylmethacrylate (MMA), being cast from a toluene based solution, is chosen as a model system. The near-surface composition profile is probed with X-ray reflectivity. All probed samples show an enrichment of PMMA at the sample surface; however, the near-surface PMMA content strongly increases with increasing RH. The influence of the RH on the composition profile is present down to a depth of 50 nm. Therefore the surface tensions being derived from contact angle measurements do not show any measurable humidity dependence. In contrast, in a mechanical tack test with a smooth punch surface, a strong influence is probed. This observation can be explained by considering the integrated PMMA content over an appropriate near-surface region and the resulting impact on the cavitation process.

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Section: Resultsmentioning

confidence: 99%

Tailoring the near-Surface Composition Profiles of Pressure-Sensitive Adhesive Films and the Resulting Mechanical Properties

Diethert

Ecker

Peykova

et al. 2011

ACS Appl. Mater. Interfaces

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“…The poly(styrene- b -butadiene- b -styrene) (SBS) triblock copolymer, containing 60–80 wt % soft phase fraction, is one of the main common commercial thermoplastic elastomers (TPEs) . Thanks to its favorable recyclability and processability, , SBS has been used in various areas, such as footwear, impact modifiers, adhesives, and toughening engineering plastics. − Because of the physical cross-links introduced by vitrification of PS domains, SBS is available to be molded at high temperature like plastics while it can also be utilized as common elastomers at room temperature. , Nevertheless, the low and inferior strength and modulus of SBS at low strain, − such as 100%, and its inadequate versatility result in the fact that its wide range of applications are somehow restricted to a large part. Therefore, the amelioration of modulus at low strain and endowment of functionalization are of great significance in expanding the application of SBS.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of “Zn²⁺ Salt-Bondings” Cross-Linked SBS-g-COOH/ZnO Composites: Thiol–Ene Reaction Modification of SBS, Structure, High Modulus, and Shape Memory Properties

Yan

Cao

et al. 2019

Macromolecules

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The fabrication of SBS-g-COOH/ZnO composites cross-linked by Zn 2+ salt-bondings was reported. First, SBS-g-COOH with different grafting ratio was synthesized through the thermally induced thiol−ene click reaction, which was corroborated by FT-IR and 1 H NMR. Next, zinc oxide (ZnO) was added to coordinate with the carboxyl groups of SBS-g-COOH to obtain the Zn 2+ salt-bondings. TEM images, demonstrating the ion-rich domains with size of 30−50 nm, substantiated the formation of Zn 2+ salt-bondings and also exhibited that the size and density of ion domains increased with the increasing content of ZnO. The salt-bondings effectively enhanced the mechanical properties of SBS-g-COOH/ZnO composites, achieving a maximum tensile stress of 14.24 MPa at 100% strain and a Young's modulus of 14.19 MPa, which were almost 4.49 times and 4.35 times larger than that without ZnO, respectively. Simultaneously, the ionic networks cross-linked by salt-bondings endowed the composites with feasible shape memory behaviors that the best shape recovery ratio could be up to 97%.

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“…The recent use of AFM to follow the changes of surface properties after ageing or UV curing has demonstrated that it can be a powerful tool 8–12. The modifications of the nanomechanical properties can be measured as a function of degradation time from load/unload indentation responses 13,14.…”

Section: Introductionmentioning

confidence: 99%

Depth Profiling by AFM Nanoindentations and Micro‐FTIR Spectroscopy for the Study of Polymer Ageing

Mailhot

Bussière

Rivaton

et al. 2004

Macromol. Rapid Commun.

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Summary: A method of depth profiling by AFM nanoindentations is developed for the characterisation of the heterogeneity of the mechanical properties of oxidised polymers. An increase or a decrease of the sample stiffness is measured close to the surface. A comparison with micro‐FTIR profiles and a knowledge of the photooxidation mechanism permit an interpretation of the chemical and physical changes and give new insights into the understanding of the ageing behaviour.Photooxidation profile of a TMPC film measured by AFM (•) and by micro‐FTIR (♦) after irradiation.imagePhotooxidation profile of a TMPC film measured by AFM (•) and by micro‐FTIR (♦) after irradiation.

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Surface investigation of adhesive formulation consisting of UV sensitive triblock poly(styrene–b-butadiene–b-styrene) copolymer

Cited by 17 publications

References 16 publications

Tailoring the near-Surface Composition Profiles of Pressure-Sensitive Adhesive Films and the Resulting Mechanical Properties

Tailoring the near-Surface Composition Profiles of Pressure-Sensitive Adhesive Films and the Resulting Mechanical Properties

Fabrication of “Zn²⁺ Salt-Bondings” Cross-Linked SBS-g-COOH/ZnO Composites: Thiol–Ene Reaction Modification of SBS, Structure, High Modulus, and Shape Memory Properties

Depth Profiling by AFM Nanoindentations and Micro‐FTIR Spectroscopy for the Study of Polymer Ageing

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Surface investigation of adhesive formulation consisting of UV sensitive triblock poly(styrene–b-butadiene–b-styrene) copolymer

Cited by 17 publications

References 16 publications

Tailoring the near-Surface Composition Profiles of Pressure-Sensitive Adhesive Films and the Resulting Mechanical Properties

Tailoring the near-Surface Composition Profiles of Pressure-Sensitive Adhesive Films and the Resulting Mechanical Properties

Fabrication of “Zn2+ Salt-Bondings” Cross-Linked SBS-g-COOH/ZnO Composites: Thiol–Ene Reaction Modification of SBS, Structure, High Modulus, and Shape Memory Properties

Depth Profiling by AFM Nanoindentations and Micro‐FTIR Spectroscopy for the Study of Polymer Ageing

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Product

Resources

About

Fabrication of “Zn²⁺ Salt-Bondings” Cross-Linked SBS-g-COOH/ZnO Composites: Thiol–Ene Reaction Modification of SBS, Structure, High Modulus, and Shape Memory Properties