Synthesis of Acrylic−Polyurethane Hybrid Latexes by Miniemulsion Polymerization and Their Pressure-Sensitive Adhesive Applications

Udagama, Ravindra; Degrandi-Contraires, Élise; Creton, Costantino; Graillat, C.; McKenna, Timothy F. L.; Bourgeat‐Lami, Élodie

doi:10.1021/ma200073d

Cited by 89 publications

(76 citation statements)

References 58 publications

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“…The absorption peak at 3353 cm 21 and 1719 cm 21 can be ascribed to the stretching vibration of hydrogen-bonded -NH. 27,28 Before UV curing, the absorption peaks of the C@C double band at 1635 cm 21 (C@C), 1411 cm 21 (@CH 2 ), and 809 cm 21 (@CH) 19,29,30 are observed, suggesting that UWPU is functionalized with vinyl groups. It is worthy to note that the characteristic peaks of the vinyl groups disappear after UV-curing, indicating the crosslinking reaction among vinyl groups.…”

Section: Characterization Of Uwpu Dispersions and Filmsmentioning

confidence: 99%

Preparation and property of waterborne UV‐curable chain‐extended polyurethane surface sizing agent: Strengthening and waterproofing mechanism for cellulose fiber paper

Wang

Fan

Fei

et al. 2015

J of Applied Polymer Sci

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Waterborne UV-curable polyurethane (UWPU) dispersions with different hydrophilicity and functionalities were prepared by varying the content of dimethylol butanoic acid (DMBA) and pentaerythritol triacrylate (PETA). And linear and cyclic chain extenders with different functionalities were also incorporated into the UWPU backbone, including isophorone diamine (IPDA), diethylene triamine (DETA), and ethylene diamine (EDA). Effects of DMBA content, PETA content, photoinitiator content, UV curing time, chain extender on the properties of UWPU dispersions and films, as well as the properties of the unsized and sized paper were investigated. The water resistance and mechanical properties of sized paper were greatly relied on the particle size, the molecular weight, the croslinking density, and penetrability of UWPU. UWPU dispersion chain extended with IPDA (IPDA-UWPU) displayed smaller particle size than that of UWPU. The paper sized with IPDA-UWPU was endowed with best water resistance, tensile strength, folding strength and surface strength. XPS depth analysis revealed that IPDA-UWPU exhibited better penetrability into the paper substrate than UWPU. SEM and AFM demonstrated that the smoothness of sized paper was improved, and the bond strength between fibers was enhanced. The obtained UWPU could be directly used as an effective and fast drying surface sizing agent for cellulose fiber paper.

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Section: Characterization Of Uwpu Dispersions and Filmsmentioning

confidence: 99%

Preparation and property of waterborne UV‐curable chain‐extended polyurethane surface sizing agent: Strengthening and waterproofing mechanism for cellulose fiber paper

Wang

Fan

Fei

et al. 2015

J of Applied Polymer Sci

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“…One way to produce water-borne, environmentally friendly hybrid polymers that synergistically combine the positive properties of different materials is by means of the use of miniemulsion polymerization technique [2,3,4]. In particular, this technique has been employed to incorporate polyurethanes polymer chains into acrylic polymers in an attempt to improve the adhesive properties of the acrylic waterborne pressure-sensitive adhesives.…”

Section: Introductionmentioning

confidence: 99%

Dielectric relaxations of Acrylic-Polyurethane hybrid materials

Martínez-Rugerio

Alegría

Daniloska

et al. 2015

Polymer

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In this work we present a dielectric relaxation study of Acrilyc/Polyurethane polymers synthesized via miniemulsion photo-polymerization. Three different samples, both parts of the synthesized hybrid latex (SOL and GEL fractions) and a full acrylic sample as reference have been considered. Besides dielectric experiments using broadband Dielectric Spectroscopy (BDS) technique, complementary Differential Scanning Calorimetry measurements have been performed. The thermodynamic characterization outcomes evidence very similar characteristics of the glass transition phenomena among the investigated samples without any signature of melting/crystallization. However BDS experiments show three well resolved dielectric relaxation processes above Tg, two of them evidence marked differences among the samples. A detail study allows us to provide a molecular origin for these three dielectric relaxation processes in connection with the sample characteristics. In particular, our results show that the characterization of these hybrid Acrylic/PU by BDS can provide access to some of the structural features that would ultimately influence the adhesives properties.

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“…[11][12][13] Miniemulsion polymerization provides an interesting platform for polymer scientists as it alleviates the need for monomer transport through the aqueous phase that is required in an emulsion polymerization. This makes it particularly useful for pigment encapsulation, 9,14 polymerization of extremely hydrophobic monomers, 15 hybrid polymer sytems 6,10,16,17 and in controlled radical polymerization techniques. [18][19][20][21] Despite the obvious potential for commercialization of the process, after 40 years of research into miniemulsion polymerization it remains largely the realm of academic scientists.…”

Section: Introductionmentioning

confidence: 99%

An investigation into the nature and potential of in-situ surfactants for low energy miniemulsification

Ballard

Salsamendi

Carretero

et al. 2015

Journal of Colloid and Interface Science

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Synthesis of Acrylic−Polyurethane Hybrid Latexes by Miniemulsion Polymerization and Their Pressure-Sensitive Adhesive Applications

Cited by 89 publications

References 58 publications

Preparation and property of waterborne UV‐curable chain‐extended polyurethane surface sizing agent: Strengthening and waterproofing mechanism for cellulose fiber paper

Preparation and property of waterborne UV‐curable chain‐extended polyurethane surface sizing agent: Strengthening and waterproofing mechanism for cellulose fiber paper

Dielectric relaxations of Acrylic-Polyurethane hybrid materials

An investigation into the nature and potential of in-situ surfactants for low energy miniemulsification

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