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    Toward replacement of methyl methacrylate by sustainable bio-based isobornyl methacrylate in latex pressure sensitive adhesive

    Year: 2020

    Journal: Int. J. Adhes. Adhes., Volume 100, JUL

    Authors: Fang, Cheng; Zhu, Xinbao; Cao, Yunfeng; Xu, Xu; Wang, Shifa; Dong, Xiaohong

    Organizations: National Key R&D Program of China [2016YFD0600804]; Fund for Scientific Research of High-level (Highly educated) Talents of Nanjing Forestry University [GXL2018038]; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)

    Keywords: Sustainable; Isobornyl methacrylate; Emulsion polymerization; High performance; Pressure sensitive adhesive

    Sustainable bio-based monomer isobornyl methacrylate (IBOMA) was evaluated as an alternative to traditional petroleum-based methyl methacrylate (MMA) as hard monomer in the application of acrylic latex pressure sensitive adhesive (PSA). The influence of bio-based IBOMA on the viscosity and particle size of the latexes and the gel content, sol molecular weight (M-w, M-n) and adhesive properties (loop tack, peel strength and shear strength) of the PSA copolymers were investigated. In addition, transmission electron microscopy (TEM), nuclear magnetic resonance (NMR), contact angle analysis, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA) were used to characterize the structure and properties of latexes and corresponding films. Results were compared with those obtained when using traditional petroleum-based hard monomer MMA. Some interesting phenomena and results were indeed obtained in this work. This article will not only enrich the application of bio-based monomer IBOMA in the field of acrylic emulsion PSA, but also provide sustainable methods for the preparation of high performance acrylic emulsion PSAs (e.g. high water resistance and high cohesion emulsion PSAs).
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