1
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Brito EL, Ballard N. Film formation of hard‐core/soft‐shell latex particles. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Elvis Lopes Brito
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas University of the Basque Country UPV/EHU Donostia‐San Sebastián Spain
| | - Nicholas Ballard
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas University of the Basque Country UPV/EHU Donostia‐San Sebastián Spain
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2
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Li Z, Zhu G, Lin N. Dispersibility Characterization of Cellulose Nanocrystals in Polymeric-Based Composites. Biomacromolecules 2022; 23:4439-4468. [PMID: 36195577 DOI: 10.1021/acs.biomac.2c00987] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cellulose nanocrystals (CNCs) are hydrophilic nanoparticles extracted from biomass with properties and functions different from cellulose and are being developed for property-oriented applications such as high stiffness, abundant active groups, and biocompatibility. It has broad application prospects in the field of composite materials, while the dispersibility of the CNC in polymers is the key to its application performance. Many reviews have discussed in-depth the modification strategies to improve the dispersibility of the CNC and summarized all characterization for the CNC, but there are no reviews on the in-depth exploration of dispersion characterization. This review is a comprehensive summary of the characterization of CNC dispersion in the matrix in terms of direct observation, indirect evaluation, and quantified evaluation, summarizing how and why different characterization tools reveal dispersibility. In addition, "decision tree" flowcharts are presented to provide the reader with a reference for selecting the appropriate characterization method for a specific composite.
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Affiliation(s)
- Zikang Li
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Luoshi Road #122, Wuhan430070, P. R. China
| | - Ge Zhu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Luoshi Road #122, Wuhan430070, P. R. China
| | - Ning Lin
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Luoshi Road #122, Wuhan430070, P. R. China
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3
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Yang X, Yang S, Wang L. Cellulose or chitin nanofibril-stabilized latex for medical adhesion via tailoring colloidal interactions. Carbohydr Polym 2022; 278:118916. [PMID: 34973735 DOI: 10.1016/j.carbpol.2021.118916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/24/2021] [Accepted: 11/15/2021] [Indexed: 11/28/2022]
Abstract
The objective of this research is to develop a functional medical adhesive from natural nanofibril-stabilized latex through an aqueous process. Surface charged cellulose or chitin nanofibrils are used to form Pickering emulsions of acrylic monomers, followed by in situ polymerization. Charged initiators are selected to tailor the interactions between them and nanofibrils, and it is found that the repulsive electrostatic interactions play a key role in stabilizing the heterogeneous system. As a result, poly(2-ethylhexyl acrylate-co-methyl methacrylate) latexes are successfully prepared for surfactant-free adhesives with a high shear strength of 72.0 ± 6.5 kPa. In addition, drug can be easily incorporated in the nanopaper substrate or adhesive layer to form a medical tape, exhibiting long-term drug release and antibacterial behaviors. We managed developing a facile method to integrate green synthesis, versatile functionalities and excellent adhesion into one adhesive, which remains a great challenge.
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Affiliation(s)
- Xianpeng Yang
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China; Key Laboratory of Coastal Environment and Resources Research of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Shuang Yang
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China; Key Laboratory of Coastal Environment and Resources Research of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Lei Wang
- Institute of Advanced Technology, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China; Key Laboratory of Coastal Environment and Resources Research of Zhejiang Province, School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China.
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4
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Perez A, Kynaston E, Lindsay C, Ballard N. Designed incorporation of semi-crystalline domains into structured latex particles via solvent-aided emulsion polymerization. Polym Chem 2022. [DOI: 10.1039/d2py00926a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe an emulsion polymerization route towards the design of structured latex particles containing semi-crystalline domains with improved mechanical properties.
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Affiliation(s)
- Adrián Perez
- POLYMAT, University of the Basque Country UPV/EHU, Kimika Aplikatua saila, Kimika Zientzien Fakultatea, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastián, Spain
| | - Emily Kynaston
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG42 6EY, UK
| | - Christopher Lindsay
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire RG42 6EY, UK
| | - Nicholas Ballard
- POLYMAT, University of the Basque Country UPV/EHU, Kimika Aplikatua saila, Kimika Zientzien Fakultatea, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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5
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Rigg A, Champagne P, Cunningham MF. Polysaccharide-Based Nanoparticles as Pickering Emulsifiers in Emulsion Formulations and Heterogenous Polymerization Systems. Macromol Rapid Commun 2021; 43:e2100493. [PMID: 34841604 DOI: 10.1002/marc.202100493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/27/2021] [Indexed: 12/20/2022]
Abstract
Bio-based Pickering emulsifiers are a nontoxic alternative to surfactants in emulsion formulations and heterogenous polymerizations. Recent demand for biocompatible and sustainable formulations has accelerated academic interest in polysaccharide-based nanoparticles as Pickering emulsifiers. Despite the environmental advantages, the inherent hydrophilicity of polysaccharides and their nanoparticles limits efficiency and application range. Modification of the polysaccharide surface is often required in the development of ultrastable, functional, and water-in-oil (W/O) systems. Complex surface modification calls into question the sustainability of polysaccharide-based nanoparticles and is identified as a significant barrier to commercialization. This review summarizes the use of nanocelluloses, -starches, and -chitins as Pickering emulsifiers, highlights trends and best practices in surface modification, and provides recommendations to expedite commercialization.
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Affiliation(s)
- Amanda Rigg
- Department of Chemical Engineering, 19 Division Street, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - Pascale Champagne
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, ON, K7L 3N6, Canada.,Institut National de la Recherche Scientifique (INRS), 490 rue de la Couronne, Quebec City, Quebec, G1K 9A9, Canada
| | - Michael F Cunningham
- Department of Chemical Engineering, 19 Division Street, Queen's University, Kingston, ON, K7L 3N6, Canada.,Department of Chemistry, 90 Bader Lane, Queen's University, Kingston, ON, K7L 3N6, Canada
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6
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Cao H, Escamilla M, Anas M, Tan Z, Gulati S, Yun J, Arole KD, Lutkenhaus JL, Radovic M, Pentzer EB, Green MJ. Synthesis and Electronic Applications of Particle-Templated Ti 3C 2T z MXene-Polymer Films via Pickering Emulsion Polymerization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51556-51566. [PMID: 34672540 DOI: 10.1021/acsami.1c16234] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
MXene/polymer composites have gained widespread attention due to their high electrical conductivity and extensive applications, including electromagnetic interference (EMI) shielding, energy storage, and catalysis. However, due to the difficulty of dispersing MXenes in common polymers, the fabrication of MXene/polymer composites with high electrical conductivity and satisfactory EMI shielding properties is challenging, especially at low MXene loadings. Here, we report the fabrication of MXene-armored polymer particles using dispersion polymerization in Pickering emulsions and demonstrate that these composite powders can be used as feedstocks for MXene/polymer composite films with excellent EMI shielding performance. Ti3C2Tz nanosheets are used as the representative MXene, and three different monomers are used to prepare the armored particles. The presence of nanosheets on the particle surface was confirmed by X-ray photoelectron spectroscopy and scanning electron microscopy. Hot pressing the armored particles above Tg of the polymer produced Ti3C2Tz/polymer composite films; the films are electrically conductive because of the network of nanosheets templated by the particle feedstocks. For example, the particle-templated Ti3C2Tz/polystyrene film had an electrical conductivity of 0.011 S/cm with 1.2 wt % of Ti3C2Tz, which resulted in a high radio frequency heating rate of 13-15 °C/s in the range of 135-150 MHz and an EMI shielding effectiveness of ∼21 dB within the X band. This work provides a new approach to fabricate MXene/polymer composite films with a templated electrical network at low MXene loadings.
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Affiliation(s)
- Huaixuan Cao
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Maria Escamilla
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Muhammad Anas
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Zeyi Tan
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Siddhant Gulati
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Junyeong Yun
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Kailash Dhondiram Arole
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Jodie L Lutkenhaus
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Miladin Radovic
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Emily B Pentzer
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Micah J Green
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843, United States
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7
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Pang B, Liu H, Zhang K. Recent progress on Pickering emulsions stabilized by polysaccharides-based micro/nanoparticles. Adv Colloid Interface Sci 2021; 296:102522. [PMID: 34534752 DOI: 10.1016/j.cis.2021.102522] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/16/2021] [Accepted: 09/05/2021] [Indexed: 02/07/2023]
Abstract
Pickering emulsions stabilized by micro/nanoparticles have attracted considerable attention owing to their great potential in various applications ranging from cosmetic and food industries to catalysis, tissue engineering and drug delivery. There is a growing demand to design "green" micro/nanoparticles for constructing stable Pickering emulsions. Micro/nanoparticles derived from the naturally occurring polysaccharides including cellulose, chitin, chitosan and starch are capable of assembling at oil/water interfaces and are promising green candidates because of their excellent biodegradability and renewability. The physicochemical properties of the micro/nanoparticles, which are determined by the fabricating approaches and/or post-modification methods, have a significant effect on the characteristics of the final Pickering emulsions and their applications. Herein, recent advances on Pickering emulsions stabilized by polysaccharides-based micro/nanoparticles and the construction of functional materials including porous foams, microcapsules and latex particles from these emulsions as templates, are reviewed. In particular, the effects of micro/nanoparticles properties on the characteristics of the Pickering emulsions and their applications are discussed. Furthermore, the obstacles that hinder the practical applications of polysaccharides-based micro/nanoparticles and Pickering emulsions as well as the prospects for the future development, are discussed.
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8
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Pakdel AS, Cranston ED, Dubé MA. Incorporating Hydrophobic Cellulose Nanocrystals inside Latex Particles via Mini‐Emulsion Polymerization. MACROMOL REACT ENG 2021. [DOI: 10.1002/mren.202100023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Amir Saeid Pakdel
- Department of Chemical and Biological Engineering University of Ottawa Ottawa ON K1N 6N5 Canada
| | - Emily D. Cranston
- Department of Wood Science and Department of Chemical and Biological Engineering The University of British Columbia Vancouver BC V6T 1Z4 Canada
| | - Marc A. Dubé
- Department of Chemical and Biological Engineering University of Ottawa Ottawa ON K1N 6N5 Canada
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9
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Kedzior SA, Gabriel VA, Dubé MA, Cranston ED. Nanocellulose in Emulsions and Heterogeneous Water-Based Polymer Systems: A Review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2002404. [PMID: 32797718 DOI: 10.1002/adma.202002404] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Nanocelluloses (i.e., bacterial nanocellulose, cellulose nanocrystals, and cellulose nanofibrils) are cellulose-based materials with at least one dimension in the nanoscale. These materials have unique and useful properties and have been shown to assemble at oil-water interfaces and impart new functionality to emulsion and latex systems. Herein, the use of nanocellulose in both emulsions and heterogeneous water-based polymers is reviewed, including dispersion, suspension, and emulsion polymerization. Comprehensive tables describe past work employing nanocellulose as stabilizers or additives and the properties that can be tailored through the use of nanocellulose are highlighted. Even at low loadings, nanocellulose offers an unprecedented level of control as a property modifier for a range of emulsion and polymer applications, influencing, for example, emulsion type, stability, and stimuli-responsive behavior. Nanocellulose can tune polymer particle properties such as size, surface charge, and morphology, or be used to produce capsules and polymer nanocomposites with enhanced mechanical, thermal, and adhesive properties. The role of nanocellulose is discussed, and a perspective for future direction is presented.
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Affiliation(s)
- Stephanie A Kedzior
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
| | - Vida A Gabriel
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur Pvt., Ottawa, ON, K1N 6N5, Canada
| | - Marc A Dubé
- Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur Pvt., Ottawa, ON, K1N 6N5, Canada
| | - Emily D Cranston
- Department of Wood Science, Department of Chemical & Biological Engineering, University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada
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10
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Pakdel AS, Niinivaara E, Cranston ED, Berry RM, Dubé MA. Cellulose Nanocrystal (CNC)-Latex Nanocomposites: Effect of CNC Hydrophilicity and Charge on Rheological, Mechanical, and Adhesive Properties. Macromol Rapid Commun 2020; 42:e2000448. [PMID: 33047439 DOI: 10.1002/marc.202000448] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/29/2020] [Accepted: 09/29/2020] [Indexed: 12/26/2022]
Abstract
Cellulose nanocrystals (CNCs), a sustainable nanomaterial, are in situ incorporated into emulsion-based pressure-sensitive adhesives (PSAs). Commercially available CNCs with different surface hydrophilicity and surface charge (CNC101 and CNC103 from CelluForce) are used to explore their role in PSA property modification. Viscosity measurements and atomic force microscopy reveal differences in degree of association between the CNCs and the latex particles depending on the surface properties of the CNCs. The more hydrophilic and higher surface charge CNCs (CNC101) show less association with the latex particles. Dynamic strain sweep tests are used to analyze the strain-softening of the nanocomposites based on CNC type and loading. The CNC101 nanocomposites soften at lower strains than their CNC103 counterparts. This behavior is confirmed via dynamic frequency tests and modeling of the nanocomposites' storage moduli, which suggest the formation of CNC aggregates of, on average, 3.8 CNC101 and 1.3 CNC103 nanoparticles. Finally, PSA properties, i.e., tack, peel strength, and shear strength, simultaneously increase upon addition of both CNC types, although to different extents. The relationship between the PSA properties and CNC surface properties confirms that the less hydrophilic CNCs lead to improved CNC dispersion in the PSA films and therefore, enhance PSA properties.
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Affiliation(s)
- Amir Saeid Pakdel
- Department of Chemical and Biological EngineeringCentre for Catalysis Research and Innovation, University of Ottawa, 161 Louis Pasteur Pvt., Ottawa, ON, K1N 6N5, Canada
| | - Elina Niinivaara
- Department of Wood Science, The University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada.,Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI0076 Aalto, Espoo, 02150, Finland
| | - Emily D Cranston
- Department of Wood Science, The University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada.,Department of Chemical and Biological Engineering, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Richard M Berry
- CelluForce, 625 President Kennedy Ave., Suite 1705, Montreal, QC, H3A 1K2, Canada
| | - Marc A Dubé
- Department of Chemical and Biological EngineeringCentre for Catalysis Research and Innovation, University of Ottawa, 161 Louis Pasteur Pvt., Ottawa, ON, K1N 6N5, Canada
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Griveau L, Delorme J, Engström J, Dugas PY, Carlmark A, Malmström E, D’Agosto F, Lansalot M. Synergetic Effect of Water-Soluble PEG-Based Macromonomers and Cellulose Nanocrystals for the Stabilization of PMMA Latexes by Surfactant-Free Emulsion Polymerization. Biomacromolecules 2020; 21:4479-4491. [DOI: 10.1021/acs.biomac.0c00439] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lucie Griveau
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France
| | - James Delorme
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France
| | - Joakim Engström
- Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Wallenberg Wood Science Centre, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Pierre-Yves Dugas
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France
| | - Anna Carlmark
- Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Wallenberg Wood Science Centre, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Eva Malmström
- Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Wallenberg Wood Science Centre, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Franck D’Agosto
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France
| | - Muriel Lansalot
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), 43 Bd du 11 Novembre 1918, 69616 Villeurbanne, France
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12
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Limousin E, Rafaniello I, Schäfer T, Ballard N, Asua JM. Linking Film Structure and Mechanical Properties in Nanocomposite Films Formed from Dispersions of Cellulose Nanocrystals and Acrylic Latexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2052-2062. [PMID: 32031814 DOI: 10.1021/acs.langmuir.9b03861] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Cellulose nanocrystals (CNCs) are unique, lightweight materials that possess high elastic modulus and tensile strength, making them of great interest in the formation of nanocomposite materials. However, efficient design of the composite material is essential in translating the mechanical properties of the individual CNCs into the nanocomposite film. In this work, we demonstrate the formation of structured CNC/acrylic dispersions by physical blending of the anionic CNCs with charged acrylic latex particles. By blending with large cationic latex particles, the CNCs adsorbed onto the acrylic latex surface while blending with small latex particles led to the inverse structure. Films were cast from these dispersions and the physical properties were compared with the aim of understanding the influence of the initial structure of the hybrid dispersion on the structure of the final film. A significant difference in the mechanical properties was observed based on the position of the CNCs in the initial dispersion. Adsorption of latex particles onto the CNC surface led to a random distribution of nonconnected CNCs, which contributed little to improving the Young's modulus, while adsorption of CNC onto the latex led to a honeycomb CNC network and a large increase in the Young's modulus. This work underlines the importance of particle structure on the structure and mechanical properties of nanostructured films.
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Affiliation(s)
- Elodie Limousin
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, Donostia-San Sebastián 20018, Spain
| | - Iliane Rafaniello
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, Donostia-San Sebastián 20018, Spain
| | - Thomas Schäfer
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, Donostia-San Sebastián 20018, Spain
- Ikerbasque, Basque Foundation for Science, E-48011 Bilbao, Spain
| | - Nicholas Ballard
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, Donostia-San Sebastián 20018, Spain
- Ikerbasque, Basque Foundation for Science, E-48011 Bilbao, Spain
| | - José M Asua
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, Donostia-San Sebastián 20018, Spain
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13
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Cellulose nanocrystal as ecofriendly stabilizer for emulsion polymerization and its application for waterborne adhesive. Carbohydr Polym 2020; 229:115504. [DOI: 10.1016/j.carbpol.2019.115504] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/17/2019] [Accepted: 10/17/2019] [Indexed: 12/17/2022]
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14
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Lotierzo A, Meaney SP, Bon SAF. Effect of the addition of salt to Pickering emulsion polymerizations using polymeric nanogels as stabilizers. Polym Chem 2019. [DOI: 10.1039/c9py01240k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanogels made from crosslinked block copolymer micelles are used as stabilizers in the Pickering emulsion polymerization of styrene.
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Affiliation(s)
- Andrea Lotierzo
- Department of Chemistry
- University of Warwick
- Coventry CV4 7AL
- UK
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