Preparation of environmentally friendly acrylic pressure-sensitive adhesives by bulk photopolymerization and their performance

Zhu, Menglu; Cao, Zhanshuo; Zhou, Haijun; Xie, Yijun; Li, Guohua; Wang, Nongyue; Liu, Yingchun; He, Lianqi; Qu, Xiongwei

doi:10.1039/c9ra10514j

Cited by 48 publications

(32 citation statements)

References 36 publications

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“…18,600–21,700 g/mol) regardless of the AA content. The obtained values are much lower than in the case of bulk photopolymerization without the use of a classical chain transfer agent [ 17 ]. Additionally, the PDI values amounted to ca.…”

Section: Resultsmentioning

confidence: 99%

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Influence of Acrylic Acid on Kinetics of UV-Induced Cotelomerization Process and Properties of Obtained Pressure-Sensitive Adhesives

et al. 2020

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A new environmentally friendly method of photoreactive pressure-sensitive adhesives (PSAs) preparation was demonstrated. PSAs based on n-butyl acrylate (BA), acrylic acid (AA) and 4-acryloyloxy benxophenone (ABP) were prepared via the UV-induced cotelomerization process in the presence of a radical photoinitiator (acylphosphine oxide) and telogen (tetrabromomethane). Hydroxyterminated polybutadiene was used as a crosslinking agent. Influence of AA concentration (0–10 wt %) on kinetics of the cotelomerization process was investigated using a photodifferential scanning calorimetry method, selected physicochemical features of obtained photoreactive BA/AA/ABP cotelomers (molecular masses, polydispersity, monomers conversion and dynamic viscosity) and self-adhesive properties of obtained PSAs (adhesion, tack and cohesion) were studied, as well. It turned out that AA content is the important factor that influences monomers conversion (thereby the volatile parts content in prepolymer) and PSAs’ properties. As the acrylic acid content increases, the reaction rate increases, but the total monomers conversion and the solid content of the prepolymer decreases. Additionally, the adhesion and cohesion of PSAs were grown up, and their tackiness decreased. However, the AA content has no effect on molecular weights (Mw and Mn) and polydispersity (c.a. 1.5) of photoreactive cotelomers. The optimal AA content necessary to obtain a prepolymer with low volatile parts content and good PSA properties was determined.

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Section: Resultsmentioning

confidence: 99%

“…In turn, Zhu and at al. investigated the effect of 1,6-hexanediol diacrylate as a crosslinking agent on the performance of PSAs obtained by bulk photopolymerization of n -butyl acrylate, 2-hydroxyethyl acrylate and acrylic acid [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Acrylic Acid on Kinetics of UV-Induced Cotelomerization Process and Properties of Obtained Pressure-Sensitive Adhesives

et al. 2020

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“…Figure 6 illustrates the gel fraction ( f g ) of PSA/DAM‐PEEL dual cross‐linking networks. The gel can formed by intermolecular and/or intramolecular chain transfer to a polymer after the reactions, resulting in a three‐dimensional continuous network structure 52 . The value of f g increased with the introduction of DAM/PEEL content except for the case of PSA/DAM.…”

Section: Resultsmentioning

confidence: 99%

“…The gel can formed by intermolecular and/or intramolecular chain transfer to a polymer after the reactions, resulting in a threedimensional continuous network structure. 52 The value of f g increased with the introduction of DAM/PEEL content except for the case of PSA/DAM. The values of f g were 65.6% in the PSA and 76.6, 82.8, 85.0, and 92.3% in the PSA/DAM, PSA/DAM-P1, PSA/DAM-P2, and PSA/DAM-P3, respectively.…”

Section: Thermal Properties Of Psa/dam-peel Dual Cross-linking Netwmentioning

confidence: 90%

Robust and recoverable dual cross‐linking networks in pressure‐sensitive adhesives

Kim

Song

Choi

et al. 2020

Journal of Polymer Science

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Pressure-sensitive adhesives (PSAs) demand the ability to simultaneously improve toughness and adhesion. However, these requirements of PSAs have remained a great challenge because robust and recoverable characteristics are usually contradictory properties of PSAs. Dual cross-linking networks developed by incorporating dynamic noncovalent bonds into chemical cross-linking networks have the potential to mitigate these requirements in a wide variety of applications including adhesives, hydrogels, and elastomers. Herein, a facile approach to achieve dual cross-linking networks of acrylic PSAs with excellent mechanical properties and high-adhesive performance that integrate physically cross-linked networks into chemically cross-linked networks is proposed. Diurethane acrylic monomer-pentaerythritol ethoxylate (DAM-PEEL) groups were introduced into the acrylic PSA system through photopolymerization. The PSA/DAM-PEEL dual cross-linking networks led to the development of the chemically cross-linked networks for both PSA and DAM via covalent bonds and the physically cross-linked networks between the amide groups of DAM and the hydroxyl groups of PEEL via hydrogen bonds. Consequently, the PSA/DAM-PEEL dual cross-linking networks were able to simultaneously improve the modulus and stretchability. This design strategy for developing dual cross-linking networks of materials could offer potential applications for various adhesive-related applications.

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“…The lower level of adhesion to non-polar polyolefin's is due to the relatively high polarity of polyacrylates. [5][6][7][8][9] The many advantages of solvent-based acrylic PSA have made these adhesives widely used in the production of self-adhesive products. They account for over 45% of the total number of PSAs produced.…”

Section: Introductionmentioning

confidence: 99%

Conductive acrylic pressure-sensitive adhesives

Antosik¹

2020

JAPLR

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Preparation of environmentally friendly acrylic pressure-sensitive adhesives by bulk photopolymerization and their performance

Abstract: Polyacrylic pressure-sensitive adhesives based on butyl acrylate, 2-hydroxyethyl acrylate, and acrylic acid were prepared by a bulk polymerization process triggered by a radical photoinitiator under UV irradiation and UV-crosslinking.

Cited by 48 publications

References 36 publications

Influence of Acrylic Acid on Kinetics of UV-Induced Cotelomerization Process and Properties of Obtained Pressure-Sensitive Adhesives

Influence of Acrylic Acid on Kinetics of UV-Induced Cotelomerization Process and Properties of Obtained Pressure-Sensitive Adhesives

Robust and recoverable dual cross‐linking networks in pressure‐sensitive adhesives

Conductive acrylic pressure-sensitive adhesives

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