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Zhang T, Xu G, Blum FD. Eco-Friendly Room-Temperature Polymerization in Emulsions and Beyond. POLYM REV 2023. [DOI: 10.1080/15583724.2023.2176514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Affiliation(s)
- Tan Zhang
- Division of Natural and Applied Sciences, Duke Kunshan University, Kunshan, Jiangsu, China
- Environmental Research Center, Duke Kunshan University, Kunshan, Jiangsu, China
| | - Gu Xu
- Brewer Science Inc., Rolla, Missouri, USA
| | - Frank D. Blum
- Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma, USA
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Electric Field and Ion Diffusion Triggered Precisely Regulated Construction of Micron-scale Water-based Polymer Films: a Detailed Mechanistic Exploration. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-1503-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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Nanocellulose in Heterogeneous Water-Based Polymerization for Wood Adhesives. POLYSACCHARIDES 2022. [DOI: 10.3390/polysaccharides3010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The interest in the development of biobased adhesives has increased due to environmental concerns. Moreover, as the production of engineered wood products (EWPs) is expected to grow, the wood adhesives market needs to transit toward formaldehyde-free products. Cellulose nanoparticles (CNPs) are a material with unique properties and advantages for producing hybrid materials as biobased wood adhesives. Besides their traditional use as reinforcing additives, CNPs can be incorporated at the beginning of the polymerization reaction to form in situ polymerized hybrid adhesives with better mechanical and physicochemical properties than the neat adhesive. Despite their outstanding characteristics, CNPs are still an emerging nanomaterial in the wood adhesive field, and the studies are incipient. This review explores the utilization of CNPs in heterogeneous polymerization for the production of polyvinyl acetate, polymeric isocyanates, waterborne polyurethane systems, and other waterborne polymer latexes. The main challenges are discussed, and some recommendations are set down for the manufacture of these novel hybrid nanocomposites.
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Niinivaara E, Ouzas A, Fraschini C, Berry RM, Dubé MA, Cranston ED. How latex film formation and adhesion at the nanoscale correlate to performance of pressure sensitive adhesives with cellulose nanocrystals. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2021; 379:20200330. [PMID: 34334024 DOI: 10.1098/rsta.2020.0330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/11/2021] [Indexed: 06/13/2023]
Abstract
Emulsion polymerized latex-based pressure-sensitive adhesives (PSAs) are more environmentally benign because they are synthesized in water but often underperform compared to their solution polymerized counterparts. Studies have shown a simultaneous improvement in the tack, and peel and shear strength of various acrylic PSAs upon the addition of cellulose nanocrystals (CNCs). This work uses atomic force microscopy (AFM) to examine the role of CNCs in (i) the coalescence of hydrophobic 2-ethyl hexyl acrylate/n-butyl acrylate/methyl methacrylate (EHA/BA/MMA) latex films and (ii) as adhesion modifiers over multiple length scales. Thin films with varying solids content and CNC loading were prepared by spin coating. AFM revealed that CNCs lowered the solids content threshold for latex particle coalescence during film formation. This improved the cohesive strength of the films, which was directly reflected in the increased shear strength of the EHA/BA/MMA PSAs with increasing CNC loading. Colloidal probe AFM indicated that the nano-adhesion of thicker continuous latex films increased with CNC loading when measured over small contact areas where the effect of surface roughness was negligible. Conversely, the beneficial effects of the CNCs on macroscopic PSA tack and peel strength were outweighed by the effects of increased surface roughness with increasing CNC loading over larger surface areas. This highlights that CNCs can improve both cohesive and adhesive PSA properties; however, the effects are most pronounced when the CNCs interact favourably with the latex polymer and are uniformly dispersed throughout the adhesive film. This article is part of the theme issue 'Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 1)'.
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Affiliation(s)
- Elina Niinivaara
- Chemical Engineering Department, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4L8
- Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, British Columbia, Canada V6T 1Z4
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 0076 Aalto, Espoo, Finland
| | - Alexandra Ouzas
- Department of Chemical and Biological Engineering, Centre for Catalysis Research and Innovation, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5
| | - Carole Fraschini
- FPInnovations, 570 Saint-Jean Boulevard, Pointe Claire, Quebec, Canada H9R 3J9
| | - Richard M Berry
- CelluForce Inc., 570, Boulevard Saint-Jean, Pointe-Claire, Quebec, H9R 3J9
| | - Marc A Dubé
- Department of Chemical and Biological Engineering, Centre for Catalysis Research and Innovation, University of Ottawa, 161 Louis Pasteur, Ottawa, Ontario, Canada K1N 6N5
| | - Emily D Cranston
- Chemical Engineering Department, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4L8
- Department of Wood Science, University of British Columbia, 2424 Main Mall, Vancouver, British Columbia, Canada V6T 1Z4
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, British Columbia, Canada V6T 1Z3
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Polymer/Laponite Nanocomposite Films Produced from Surfactant-Free Latexes using Cationic Macromolecular Reversible Addition-Fragmentation Chain Transfer Copolymers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01195] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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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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Elyasi Z, Safaei Ghomi J, Najafi GR, Zand Monfared MR. The influence of the polymerization approach on the catalytic performance of novel porous poly (ionic liquid)s for green synthesis of pharmaceutical spiro-4-thiazolidinones. RSC Adv 2020; 10:44159-44170. [PMID: 35517141 PMCID: PMC9058518 DOI: 10.1039/d0ra08647a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 11/23/2020] [Indexed: 12/17/2022] Open
Abstract
Although poly (ionic liquids) (PILs) have attracted great research interest owing to their various applications, the performance of nanoporous PILs has been rarely developed in the catalysis field. To this end, a micro–mesoporous PIL with acid–base bifunctional active sites was designed and fabricated by two different polymerization protocols including hydrothermal and classical precipitation polymerization in this paper. Based on our observations, hydrothermal conditions (high temperature and pressure) enabled the proposed sonocatalyst to possess a great porous structure with a high specific surface area (SBET: 315 m2 g−1) and thermal stability (around 450 °C for 45% weight loss) through strengthening cross-linking. In a comparative study, the preferred nanoporous PIL was selected and utilized as the sonocatalyst in a multicomponent reaction of isatins, primary amines, and thioglycolic acid. In the following, a variety of new and known pharmaceutical spiro-4-thiazolidinone derivatives were synthesized at room temperature and obtained excellent yields (>90%) within short reaction times (4–12 min) owing to the substantial synergistic effect between ultrasound irradiation and magnetically separable catalyst. Sustainable synthesize of a new mesoporous poly (ionic liquid) as acid–base bifunctional catalyst for environmental being preparation of monospiro derivatives has been developed.![]()
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Affiliation(s)
- Zahra Elyasi
- Department of Chemistry, Qom Branch, Islamic Azad University Post Box: 37491-13191 Qom I. R. Iran +98 31 55552935 +98 31 55912385
| | - Javad Safaei Ghomi
- Department of Chemistry, Qom Branch, Islamic Azad University Post Box: 37491-13191 Qom I. R. Iran +98 31 55552935 +98 31 55912385.,Department of Organic Chemistry, Faculty of Chemistry, University of Kashan Iran
| | - Gholam Reza Najafi
- Department of Chemistry, Qom Branch, Islamic Azad University Post Box: 37491-13191 Qom I. R. Iran +98 31 55552935 +98 31 55912385
| | - Mohammad Reza Zand Monfared
- Department of Chemistry, Qom Branch, Islamic Azad University Post Box: 37491-13191 Qom I. R. Iran +98 31 55552935 +98 31 55912385
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Dubé MA, Gabriel VA, Pakdel AS, Zhang Y. Sustainable polymer reaction engineering: Are we there yet? CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23865] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Marc A. Dubé
- Department of Chemical and Biological Engineering University of Ottawa Ottawa Ontario Canada
| | - Vida A. Gabriel
- Department of Chemical and Biological Engineering University of Ottawa Ottawa Ontario Canada
| | - Amir S. Pakdel
- Department of Chemical and Biological Engineering University of Ottawa Ottawa Ontario Canada
| | - Yujie Zhang
- Department of Chemical and Biological Engineering University of Ottawa Ottawa Ontario Canada
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Niinivaara E, Cranston ED. Bottom-up assembly of nanocellulose structures. Carbohydr Polym 2020; 247:116664. [PMID: 32829792 DOI: 10.1016/j.carbpol.2020.116664] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 06/04/2020] [Accepted: 06/17/2020] [Indexed: 12/21/2022]
Abstract
Nanocelluloses, both cellulose nanofibrils and cellulose nanocrystals, are gaining research traction due to their viability as key components in commercial applications and industrial processes. Significant efforts have been made to understand both the potential of assembling nanocelluloses, and the limits and prospectives of the resulting structures. This Review focuses on bottom-up techniques used to prepare nanocellulose-only structures, and details the intermolecular and surface forces driving their assembly. Additionally, the interactions that contribute to their structural integrity are discussed along with alternate pathways and suggestions for improved properties. Six categories of nanocellulose structures are presented: (1) powders, beads, and droplets; (2) capsules; (3) continuous fibres; (4) films; (5) hydrogels; and (6) aerogels and dried foams. Although research on nanocellulose assembly often focuses on fundamental science, this Review also provides insight on the potential utilization of such structures in a wide array of applications.
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Affiliation(s)
- Elina Niinivaara
- Department of Wood Science, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada; Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-0076 Aalto, Espoo, Finland.
| | - Emily D Cranston
- Department of Wood Science, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada; Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.
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Silva RD, Lona LMF, Dubé MA. Evaluation of Organically Modified Layered Double Hydroxides as Fillers for the Preparation of Polymer Nanocomposites in Miniemulsion Polymerization. MACROMOL REACT ENG 2020. [DOI: 10.1002/mren.201900049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Rodrigo Duarte Silva
- Centro Universitário de Formiga, 328 Doutor Arnaldo de Senna Ave. Formiga MG 35570‐000 Brazil
| | - Liliane Maria Ferrareso Lona
- Department of Chemical Engineering University of Campinas, Cidade Universitária Zeferino Vaz 500 Albert Einstein Ave. Campinas SP 13083‐852 Brazil
| | - Marc Arnold Dubé
- Department of Chemical and Biological Engineering University of Ottawa 161 Louis Pasteur Pvt. Ottawa ON K1N 6N5 Canada
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Tsavalas JG, McAuley KB. Special Issue: Innovative Processes and Enabling Technologies. MACROMOL REACT ENG 2019. [DOI: 10.1002/mren.201900010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- John G. Tsavalas
- Department of Chemistry and Materials ScienceUniversity of New Hampshire Durham NH 03824 USA
| | - Kimberley B. McAuley
- Department of Chemical EngineeringQueen’s UniversityKingston Ontario K7L3N6 Canada
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