1
|
Smeltzer SE, Sanders CA, Liu Y, George SR, Amiri C, Gernandt A, Reck B, Cunningham MF. Amphiphilic Block-Random Copolymers: Shedding Light on Aqueous Self-Assembly Behavior. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Sandra E. Smeltzer
- Department of Chemical Engineering, Queen’s University, Kingston K7L 3N6, ON, Canada
| | - Connor A. Sanders
- Department of Chemical Engineering, Queen’s University, Kingston K7L 3N6, ON, Canada
| | - Yang Liu
- Department of Chemistry, University of Toronto, Toronto M5S 3H6, ON, Canada
| | - Sean R. George
- BASF Charlotte Technical Center, Charlotte, North Carolina 28273, United States
| | | | | | | | - Michael F. Cunningham
- Department of Chemical Engineering, Queen’s University, Kingston K7L 3N6, ON, Canada
| |
Collapse
|
2
|
Liu Y, Glenn J, Tran K, Zhang M, Zhou H, Soleimani M, Lucas F, Winnik MA. Film Formation of Waterborne 2K Polyurethanes: Effect of Polyols Containing Different Carboxylic Acid Content. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Liu
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Joshua Glenn
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Kenneth Tran
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Margaret Zhang
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Hang Zhou
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mohsen Soleimani
- Advanced Materials and Systems Research, BASF, Wyandotte, Michigan 48192, United States
| | - Frédéric Lucas
- Advanced Materials and Systems Research, BASF, 67056 Ludwigshafen am Rhein, Germany
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
| |
Collapse
|
3
|
Liu Y, Zhou H, Tran K, Glenn J, Zhang M, Lu Y, Ho K, Soleimani M, Lucas F, Winnik MA. Monitoring Polymer Diffusion in a Waterborne 2K Polyurethane Formulation Based on an Acrylic Polyol Latex. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yang Liu
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Hang Zhou
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Kenneth Tran
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Joshua Glenn
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Margaret Zhang
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Yijie Lu
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Kevin Ho
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mohsen Soleimani
- BASF, Advanced Materials and Systems Research, Wyandotte, Michigan 48192, United States
| | - Frédéric Lucas
- BASF, Advanced Materials and Systems Research, 67056 Ludwigshafen am Rhein, Germany
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
| |
Collapse
|
4
|
Jiang J, Shen Y, Yu D, Yang T, Wu M, Yang L, Petru M. Porous Film Coating Enabled by Polyvinyl Pyrrolidone (PVP) for Enhanced Air Permeability of Fabrics: The Effect of PVP Molecule Weight and Dosage. Polymers (Basel) 2020; 12:E2961. [PMID: 33322455 PMCID: PMC7763011 DOI: 10.3390/polym12122961] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 11/16/2022] Open
Abstract
This study developed a versatile and facile method for creating pores and tuning the porous structure in the polymer latex films by selectively etching the added functional polyvinyl pyrrolidone (PVP) molecules. The pore formed in the latex films had a similar morphology to that of PVP aggregation before etching. This observation promotes us to regulate the pore morphology that determines the film's property, such as air permeability through varying the PVP molecule weight and dosage. To this end, the effects of PVP molecule weight and dosage on the pore formation were systematically studied. The results showed that the average pore size of porous film decreased from >10 μm to sub-micron (about 0.4 μm) as the molecular weight or the dosage of PVP increased. This was ascribed to the strong adsorption affinity of PVP molecule onto the latex particle surface, which further hindered the diffusion and self-assembly of PVP molecule. In addition, this interaction became much stronger when the higher molecule weight of PVP or the higher dosage of PVP was employed, leading to the decreased size of PVP aggregation, as well as the formed pores in the latex films. Furthermore, the addition of PVP had little effect on the color of coated fabric based on the results of CIE L*a*b* measurement. The proposed facile method can be used to improve the air permeability of coated fabrics.
Collapse
Affiliation(s)
- Jiantang Jiang
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China; (J.J.); (Y.S.); (L.Y.)
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yifeng Shen
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China; (J.J.); (Y.S.); (L.Y.)
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Deyou Yu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China; (J.J.); (Y.S.); (L.Y.)
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Tao Yang
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic; (T.Y.); (M.P.)
| | - Minghua Wu
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China; (J.J.); (Y.S.); (L.Y.)
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Lei Yang
- Engineering Research Center for Eco-Dyeing and Finishing of Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China; (J.J.); (Y.S.); (L.Y.)
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Michal Petru
- Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic; (T.Y.); (M.P.)
| |
Collapse
|
5
|
Liu Y, de Oliveira Silva PP, Tran K, Zhou H, Emsermann J, Zhang M, Ho K, Lu Y, Soleimani M, Winnik MA. Molecular Aspects of Film Formation of Partially Cross-Linked Water-Borne Secondary Dispersions that Show Skin Formation upon Drying. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b02103] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Liu
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | | | - Kenneth Tran
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Hang Zhou
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Jessica Emsermann
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Margaret Zhang
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Kevin Ho
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Yijie Lu
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mohsen Soleimani
- Advanced Materials and Systems Research, BASF Corporation, Wyandotte, Michigan 48192, United States
| | - Mitchell A. Winnik
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
| |
Collapse
|
6
|
Liu Y, Tran K, Zhou H, Heck A, Breul K, Emsermann J, Gonzalez-Alvarez MJ, Hoof L, Lu Y, Soleimani M, Winnik MA. Investigating Molecular Exchange between Partially Cross-Linked Polymer Particles Prepared by a Secondary Dispersion Process. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Mohsen Soleimani
- BASF Corporation, Advanced Materials and Systems Research, Wyandotte, Michigan 48192, United States
| | | |
Collapse
|
7
|
Effect of counterion on the properties of anionic waterborne polyurethane dispersions developed from cottonseed oil based polyol. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1580-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
8
|
Xu J, Finlayson-Pitts BJ, Gerber RB. Nanoparticles grown from methanesulfonic acid and methylamine: microscopic structures and formation mechanism. Phys Chem Chem Phys 2017; 19:31949-31957. [PMID: 29177355 DOI: 10.1039/c7cp06489f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mechanisms of particle formation and growth in the atmosphere are of great interest due to their impacts on climate, health and visibility. However, the microscopic structures and related properties of the smallest nanoparticles are not known. In this paper we pursue computationally a microscopic description for the formation and growth of methanesulfonic acid (MSA) and methylamine (MA) particles under dry conditions. Energetic and dynamics simulations were used to assess the stabilities of proposed model structures for these particles. Density functional theory (DFT) and semi-empirical (PM3) calculations suggest that (MSA-MA)4 is a major intermediate in the growth process, with the dissociation energies, enthalpies and free energies indicating considerable stability for this cluster. Dynamics simulations show that this species is stable for at least 100 ps at temperatures up to 500 K, well above atmospheric temperatures. In order to reach experimentally detectable sizes (>1.4 nm), continuing growth is suggested to occur via clustering of (MSA-MA)4. The dimer (MSA-MA)4(MSA-MA)4 may be one of the smaller experimentally measured particles. Step by step addition of MSA to (MSA-MA)4, is also a likely potential growth mechanism when MSA is excess. In addition, an MSA-MA crystal is predicted to exist. These studies demonstrate that computations of particle structure and dynamics in the nano-size range can be useful for molecular level understanding of processes that grow clusters into detectable particles.
Collapse
Affiliation(s)
- Jing Xu
- Department of Chemistry, University of California, Irvine, CA 92697, USA.
| | | | | |
Collapse
|