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Aguiar A, Mariquito A, Gonçalves D, Pinho I, Marques AC. Biodegradable Microcapsules of Poly(Butylene Adipate- co-Terephthalate) (PBAT) as Isocyanate Carriers and the Effect of the Process Parameters. Polymers (Basel) 2023; 15:polym15030665. [PMID: 36771965 PMCID: PMC9921966 DOI: 10.3390/polym15030665] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Poly(butylene adipate-co-terephthalate) (PBAT), a biodegradable flexible, and tough polymer is herein used, for the first time, to encapsulate and protect isocyanate derivatives. Isocyanates are essential building blocks widely employed in the chemical industry for the production of high-performing materials. Microencapsulation of isocyanates eliminates the risks associated with their direct handling and protects them from moisture. In light of this, and having in mind eco-innovative products and sustainability, we present a straightforward process to encapsulate isophorone diisocyanate (IPDI) using this biodegradable polymer. Spherical and core-shell microcapsules (MCs) were produced by an emulsion system combined with the solvent evaporation method. The MCs present a regular surface, without holes or cracks, with a thin shell and high isocyanate loadings, up to 79 wt%. Additionally, the MCs showed very good isocyanate protection if not dispersed in organic or aqueous solutions. Effects of various process parameters were systematically studied, showing that a higher stirring speed (1000 rpm) and emulsifier amount (2.5 g), as well as a smaller PBAT amount (1.60 g), lead to smaller MCs and narrower size distribution.
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Affiliation(s)
- António Aguiar
- CERENA, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
- CIPADE—Indústria e Investigação de Produtos Adesivos, SA., Av. Primeiro de Maio 121, 3700-227 São João da Madeira, Portugal
- Correspondence: (A.A.); (A.C.M.)
| | - António Mariquito
- CERENA, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Diogo Gonçalves
- CERENA, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Isabel Pinho
- CIPADE—Indústria e Investigação de Produtos Adesivos, SA., Av. Primeiro de Maio 121, 3700-227 São João da Madeira, Portugal
| | - Ana C. Marques
- CERENA, DEQ, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
- Correspondence: (A.A.); (A.C.M.)
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Ma X, Zhou Y, Yi P, Zhou S, Wang Y, Yang D. Design, preparation and properties of new polyacrylamide based composite nano-microspheres with like “ball in ball” structure. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130037] [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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Li Z, Zhao T, Lv W, Ma B, Hu Q, Ma X, Luo Z, Zhang M, Yu ZZ, Yang D. Nanoscale Polyacrylamide Copolymer/Silica Hydrogel Microspheres with High Compressive Strength and Satisfactory Dispersion Stability for Efficient Profile Control and Plugging. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01617] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhenbo Li
- State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Tianyu Zhao
- State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Wei Lv
- Oil and Gas Technology Research Institute, PetroChina Changqing Oilfield Company, Xi’an, Shaanxi 710018, P. R. China
- National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields, Xi’an, Shaanxi 710018, P. R. China
| | - Bo Ma
- Oil and Gas Technology Research Institute, PetroChina Changqing Oilfield Company, Xi’an, Shaanxi 710018, P. R. China
- National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields, Xi’an, Shaanxi 710018, P. R. China
| | - Qiaowei Hu
- State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xiao Ma
- State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Zhuo Luo
- State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Ming Zhang
- State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Zhong-Zhen Yu
- State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Dongzhi Yang
- State Key Laboratory of Organic−Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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Nan X, Liu J, Wang X, Pan X, Wang X, Zhang X. Preparation of Superhydrophilic Adsorbents with 3DOM Structure by Water-Soluble Colloidal Crystal Templates for Boron Removal from Natural Seawater. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36918-36925. [PMID: 30289685 DOI: 10.1021/acsami.8b11763] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Three-dimensionally ordered macroporous cross-linked poly(glycidyl methacrylate) (3DOM) was constructed by water-soluble colloidal crystal templates and further functionalized with N-methyl-d-glucamine (NMDG) to prepare superhydrophilic adsorbents for boron removal from natural seawater. 3DOM adsorbents possess features of interconnected macropore structure, ultrathin pore wall, and superhydrophilicity, making efficient adsorption possible. The effect of cross-linking degree on the adsorption capacity toward boron was investigated. The NMDG-modified 3DOM adsorbent with rich vicinal diol functional groups showed superhydrophilicity and outstanding performance of adsorption. Significantly, its adsorption effect in boron removal from natural seawater indicated that the concentration of boron in natural seawater could decline to 0.16 from 4.24 mg·L-1 when the adsorbent dosage was 1 g·L-1, whereas the boron rejection reached 96.2%. After 10 regeneration-adsorption cycles, the adsorption capacity of 3DOM adsorbent remained over 85% of the initial value and the ordered structure was hardly changed. Additionally, 3DOM adsorbent could be directly and quickly separated from the seawater by a filter mesh of 16 mesh number. Research shows that the 3DOM adsorbent exhibits an adsorption performance for practical applications in boron removal from natural seawater.
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Affiliation(s)
- Xueri Nan
- School of Chemical Engineering , Hebei University of Technology , Tianjin 300130 , P.R. China
| | - Jing Liu
- The Institute of Seawater Desalination and Multipurpose Utilization, SOA , Tianjin 300192 , China
| | - Xiuli Wang
- School of Chemical Engineering , Hebei University of Technology , Tianjin 300130 , P.R. China
| | - Xianhui Pan
- The Institute of Seawater Desalination and Multipurpose Utilization, SOA , Tianjin 300192 , China
| | - Xiaomei Wang
- School of Chemical Engineering , Hebei University of Technology , Tianjin 300130 , P.R. China
| | - Xu Zhang
- School of Chemical Engineering , Hebei University of Technology , Tianjin 300130 , P.R. China
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Lee J, Beniah G, Dandamudi CB, Han JJ, Lyon BA, Norton CA, Huffman ND, Johnson LM, Mecham JB, Rothrock GD, Zhou N, Pennell KD, Johnston KP. Noncovalent grafting of polyelectrolytes onto hydrophobic polymer colloids with a swelling agent. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.06.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhang P, Bai S, You Q, Ji W, Yu H, Li D. Preparation and properties of novel pH-sensitive core−shell microspheres for enhanced oil recovery. POLYM INT 2017. [DOI: 10.1002/pi.5390] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peng Zhang
- Chongqing University of Science and Technology; School of Chemistry and Chemical Engineering; China
| | - Shixun Bai
- University of Wyoming; Department of Chemical and Petroleum Engineering; Laramie USA
| | - Qing You
- China University of Geosciences (Beijing); School of Energy; China
| | - Wenjuan Ji
- Drilling and Production Technology Research Institute of Jidong Oilfield CNPC; Tangshan China
| | - Haiyang Yu
- Drilling and Production Technology Research Institute of Jidong Oilfield CNPC; Tangshan China
| | - Dandan Li
- Hekou Oil Production Plant; SINOPEC Shengli Oilfield Company; Dongying Shangdong China
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