Macromol. Mater. Eng. 7/2007

Müller‐Buschbaum, Peter; Ittner, Thilo; Maurer, Edith; Körstgens, Volker; Petry, W.

doi:10.1002/mame.200790013

Cited by 7 publications

(8 citation statements)

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“…For example, in aircraft and automotive industries adhesive tapes are used for damping the noise level . In everyday life applications of adhesives in particular the class of pressure sensitive adhesives (PSAs) is very common . Examples are releasable joints such as duct‐tape, a very versatile multi‐purpose sticky tape to join very different materials like paper, wood, plastics, glass, or metal.…”

Section: Introductionmentioning

confidence: 99%

Near‐Interface Composition in Pressure Sensitive Adhesives at the Adhesive–Adherent Interface

Schindler

Pröller

Geue

et al. 2013

Macro Reaction Engineering

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The adhesive–adherent interface of a model system for pressure sensitive adhesives (PSAs) is probed with neutron reflectivity to reveal its inner composition. The statistical copolymer poly(ethylhexyl‐stat‐d‐methylmethacrylate) P(EHA‐stat‐dMMA), consisting of 80 wt% ethylhexylacrylate (EHA) and 20 wt% deuterated methylmethacrylate (dMMA), is used as model PSA. Its interface with silicon is investigated. The surface cleaning treatments applied to silicon strongly affect the inner near interface structure of the solution cast P(EHA‐stat‐dMMA). Two opposite behaviors are observed. On acid cleaned silicon the soft and sticky majority component EHA enriches at the interface to the substrate. In contrast, the glassy minority component dMMA forms an enrichment layer at the interface to the basic cleaned silicon surface.

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Section: Introductionmentioning

confidence: 99%

Near‐Interface Composition in Pressure Sensitive Adhesives at the Adhesive–Adherent Interface

Schindler

Pröller

Geue

et al. 2013

Macro Reaction Engineering

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“…By applying a slight pressure, a releasable bond to the substrate is formed (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11). In many PSA applications, a controlled release of the adhesive bond is desired, making use of the ability to undergo several cycles of bonding and detaching.…”

Section: Introductionmentioning

confidence: 99%

Near-Surface Composition Profiles and the Adhesive Properties of Statistical Copolymer Films Being Model Systems of Pressure Sensitive Adhesive Films

Diethert

Peykova

Willenbacher

et al. 2010

ACS Appl. Mater. Interfaces

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Statistical copolymer films that consist of two types of monomers, a sticky and a glassy monomer, are investigated. These model systems of pressure-sensitive adhesive films are probed with X-ray reflectivity and mechanical tack measurements. For the first time, composition profiles along the surface normal in the near-surface region are monitored. The influence of the type of monomers being copolymerized, the monomer ratio, and the sample age on the near-surface composition as well as the resulting adhesive performance of the films are analyzed. The copolymers contain ethylhexyl acrylate as the majority component and styrene, maleic acid anhydride, or methylmethacrylate as a minority component. Regardless of the composition, we find a surface enrichment of one component in all samples. In the case of freshly prepared samples, this enrichment is driven by solubility due to the preparation based on solution casting. The minimization of the surface free energy results in an internal reorganization and the component of the statistical copolymer with the lower surface tension enriches at the free surface. The mechanical behavior is not dominated by the surface but by the surface-near part of the composition profile.

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“…Double-sided tapes are, for instance, used in the manufacturing of windows (Milker et al, 2009). glass, paper, wood or metal (Mü ller-Buschbaum et al, 2007). glass, paper, wood or metal (Mü ller-Buschbaum et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…PSAs can also join very different kinds of material, e.g. glass, paper, wood or metal (Mü ller-Buschbaum et al, 2007). The reason for this variability lies in the chemical nature of the involved polymers, with acrylates, rubbers and silicones being prominent representatives (Czech et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Adhesive–adherent interfaces probed with grazing-incidence small-angle neutron scattering

2015

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The inner structure of a pressure‐sensitive adhesive (PSA) is investigated at the surface as well as at the buried adhesive–adherent interface. Time‐of‐flight grazing‐incidence small‐angle neutron scattering (TOF‐GISANS) is used to obtain depth‐resolved structural information about the statistical copolymer poly(ethylhexylacrylate‐stat‐d‐methylmethacrylate), which represents a well studied model PSA comprising 80% ethylhexylacrylate and 20% deuterated methylmethacrylate. Small and rare defects of around 40 nm in lateral size are found at the surface, while in the probed film volume a very low concentration of smaller structures of between 25 and 37 nm is found. Acidic and basic cleaning procedures are applied to the silicon adherent to alter the surface chemistry. At the buried interface of the adhesive and adherent no lateral structures are resolvable, irrespective of the surface treatment. The absence of dominant lateral structures shows that the statistical copolymer does not phase separate on a length scale that is of interest for applications. Furthermore, the findings prove the suitability of this kind of sample system for reflectivity measurements and demonstrate the suitability of TOF‐GISANS for nondestructive investigations of buried interfaces in adhesion science.

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Macromol. Mater. Eng. 7/2007

Cited by 7 publications

References 0 publications

Near‐Interface Composition in Pressure Sensitive Adhesives at the Adhesive–Adherent Interface

Near‐Interface Composition in Pressure Sensitive Adhesives at the Adhesive–Adherent Interface

Near-Surface Composition Profiles and the Adhesive Properties of Statistical Copolymer Films Being Model Systems of Pressure Sensitive Adhesive Films

Adhesive–adherent interfaces probed with grazing-incidence small-angle neutron scattering

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