In-situ addition of carboxylated cellulose nanocrystals in seeded semi-batch emulsion polymerization

Published on Sep 29, 2021in Canadian Journal of Chemical Engineering2.007
· DOI :10.1002/CJCE.24299
Vida A. Gabriel5
Estimated H-index: 5
(U of O: University of Ottawa),
Pascale Champagne38
Estimated H-index: 38
(Queen's University)
+ 1 AuthorsMarc A. Dubé34
Estimated H-index: 34
(U of O: University of Ottawa)
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Abstract
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2021
2021
4 Authors (Vida A. Gabriel, ..., Marc A. Dubé)
References68
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#1Gwendoline Delepierre (UBC: University of British Columbia)H-Index: 5
#2Oriana M. Vanderfleet (UBC: University of British Columbia)H-Index: 5
Last. Emily D. Cranston (UBC: University of British Columbia)H-Index: 42
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The demand for industrially produced cellulose nanocrystals (CNCs) has been growing since 2012, when CelluForce Inc. opened its inaugural demonstration plant with a production capacity of 1 tonne per day. Currently, there are 10 industrial CNC producers worldwide, each producing a unique material. Thus, academic researchers and commercial users alike must consider the properties of all available CNCs and carefully select the material which will optimize the performance of their desired applicati...
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#1Stephanie A. Kedzior (U of C: University of Calgary)H-Index: 13
#2Vida A. Gabriel (U of O: University of Ottawa)H-Index: 5
Last. Emily D. Cranston (UBC: University of British Columbia)H-Index: 42
view all 4 authors...
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 polymeriza...
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#1Marc A. Dubé (U of O: University of Ottawa)H-Index: 34
#2Vida A. Gabriel (U of O: University of Ottawa)H-Index: 5
Last. Yujie Zhang (U of O: University of Ottawa)H-Index: 8
view all 4 authors...
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#1Amir Saeid Pakdel (U of O: University of Ottawa)H-Index: 9
#2Vida A. Gabriel (U of O: University of Ottawa)H-Index: 5
Last. Marc A. Dubé (U of O: University of Ottawa)H-Index: 34
view all 6 authors...
Cellulose nanocrystals (CNCs) are naturally-sourced nanoparticles that can be used to modify polymers and provide exceptional mechanical properties to nanocomposite materials. In this study, CNCs were incorporated into water-based pressure sensitive adhesives (PSAs) via in situ semi-batch emulsion polymerization to improve PSA properties. A sequential design approach was used to improve CNC/poly(n-butyl acrylate/vinyl acetate) nanocomposite PSAs. In the first part of the design, the effects of a...
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#1Charles BruelH-Index: 5
#2Salomé QueffeulouH-Index: 2
Last. Marie-Claude HeuzeyH-Index: 41
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Cellulose nanocrystal (CNC)-based materials display apparently erratic wetting behaviors with contact angle (CA) variations as large as 30° from sample to sample. This work hypothesizes that it is the orientation of CNC amphiphilic functionalities at the interface with air that causes the variability in CA. By exploiting relationships with the Hansen solubility parameter theory, a set of surface tension parameters is proposed for both the polar and the non-polar surfaces of cellulose Iβ nanocrys...
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#1Vida A. Gabriel (U of O: University of Ottawa)H-Index: 5
#2Emily D. Cranston (UBC: University of British Columbia)H-Index: 42
Last. Marc A. Dubé (U of O: University of Ottawa)H-Index: 34
view all 3 authors...
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#1Joe Glasing (Queen's University)H-Index: 5
#2Philip G. Jessop (Queen's University)H-Index: 70
Last. Michael F. Cunningham (Queen's University)H-Index: 41
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We report a mechanistic study of the microsuspension polymerization of styrene stabilized by cellulose nanocrystals (CNC) in its native form as well as graft-modified with copolymers of styrene and N-3-(dimethylamino) propyl methacrylamide P(DMAPMAm-co-S) or N,N-(diethylamino)ethyl methacrylate (DEAEMA-co-S). Native CNC and graft-modified CNC were shown to form stable styrene emulsions with an average droplet diameter of 18-20 μm and 5 9 μm, respectively. Initiators of widely varying water solub...
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#1Alexandra OuzasH-Index: 2
#2Elina NiinivaaraH-Index: 8
Last. Marc A. DubéH-Index: 34
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Abstract The dynamics and linear viscoelastic response of waterborne acrylic/silica nanocomposite coatings have been studied. In-situ nanostructured latex were prepared using emulsion polymerization in semi-batch mode and contained up to 3 wt% nanosilica of 7 nm diameter [Romo-Uribe et al., Europ. Polym. J. 2016 , 76 , 170–186]. High-resolution transmission electron microscopy (HRTEM) of the coatings demonstrated well-dispersed nanoparticles at low silica content. Increasing silica content up to...
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#1Oriana M. Vanderfleet (McMaster University)H-Index: 5
#2Michael S. Reid (KTH: Royal Institute of Technology)H-Index: 11
Last. Emily D. Cranston (McMaster University)H-Index: 42
view all 7 authors...
This study provides insight into the thermal degradation of cotton cellulose nanocrystals (CNCs) by tuning their physico-chemical properties through acid hydrolysis using blends of phosphoric and sulfuric acid. CNCs isolated by sulfuric acid hydrolysis are known to degrade at lower temperatures than CNCs hydrolyzed with phosphoric acid; however, the reason for this change is unclear. Although all CNCs are inherently relatively thermally stable, their application in polymer composites and liquid ...
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