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Liu H, Prachyathipsakul T, Koyasseril-Yehiya TM, Le SP, Thayumanavan S. Molecular bases for temperature sensitivity in supramolecular assemblies and their applications as thermoresponsive soft materials. MATERIALS HORIZONS 2022; 9:164-193. [PMID: 34549764 PMCID: PMC8757657 DOI: 10.1039/d1mh01091c] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Thermoresponsive supramolecular assemblies have been extensively explored in diverse formats, from injectable hydrogels to nanoscale carriers, for a variety of applications including drug delivery, tissue engineering and thermo-controlled catalysis. Understanding the molecular bases behind thermal sensitivity of materials is fundamentally important for the rational design of assemblies with optimal combination of properties and predictable tunability for specific applications. In this review, we summarize the recent advances in this area with a specific focus on the parameters and factors that influence thermoresponsive properties of soft materials. We summarize and analyze the effects of structures and architectures of molecules, hydrophilic and lipophilic balance, concentration, components and external additives upon the thermoresponsiveness of the corresponding molecular assemblies.
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Affiliation(s)
- Hongxu Liu
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA.
| | | | | | - Stephanie P Le
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA.
| | - S Thayumanavan
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA.
- Department of Biomedical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Centre for Bioactive Delivery, Institute for Applied Life Science, University of Massachusetts, Amherst, Massachusetts 01003, USA
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Pang B, Yu Y, Zhang W. Thermoresponsive Polymers Based on Tertiary Amine Moieties. Macromol Rapid Commun 2021; 42:e2100504. [PMID: 34523742 DOI: 10.1002/marc.202100504] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/08/2021] [Indexed: 12/20/2022]
Abstract
Thermoresponsive polymers exhibiting unique reversible phase transition properties in aqueous solution in response to temperature stimuli have been extensively investigated. In the past two decades, thermoresponsive polymers based on tertiary amine moieties have achieved considerable progress and become an important family of thermoresponsive polymers, including tertiary amine functionalized poly((meth)acrylamide)s, poly((meth)acrylate)s, poly(styrene)s, poly(vinyl alcohol)s, and poly(ethylene oxide)s, which exhibit lower critical solution temperature and/or upper critical solution temperature in water or aliphatic alcohols. Their phase transition behavior can be modulated by the solution pH and CO2 due to the protonation of tertiary amine moieties in acidic condition and deprotonation in alkaline condition and the charged ammonium bicarbonate formed by the tertiary amine moieties and CO2 . The aim of this review is to summarize the recent progress in the thermoresponsive polymers based on tertiary amine moieties.
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Affiliation(s)
- Bo Pang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Yuewen Yu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
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Modified POSS nano-structures as novel co-initiator-crosslinker: Synthesis and characterization. Dent Mater 2021; 37:1283-1294. [PMID: 34023144 DOI: 10.1016/j.dental.2021.04.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 04/30/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To synthesize an amine-modified polyhedral oligomeric silsesquioxane (POSS) nano-structure as a novel co-initiator-crosslinker (co-Ini-Linker) and to determine the effect of the co-Ini-linker on the physical and mechanical behavior of an experimental dental composite. METHODS The amine-methacrylate POSS nano-structures (AMA-POSS) were chemically synthesized by anchoring a tertiary amine functionality on the methacrylate POSS (MA-POSS) branches. Three types of AMA-POSS, having different amine branches in their structures, were synthesized through the Aza Michael reaction. The chemical structure of AMA-POSSs were evaluated by1H-NMR spectroscopy. Afterward, the AMA-POSS was incorporated into a dental resin system composed of Bis-GMA, TEGDMA, and photo-initiator. Three resin systems with different AMA-POSS types were then prepared, and their properties were compared with a resin containing DMAEMA as a conventional co-initiator. The degree of conversion evaluated by FTIR spectroscopy and the shrinkage kinetics of the resins were determined through the bonded-disk technique. The flexural properties of the photopolymerized resins were also investigated. The distribution of nano-structures in the matrix resin was analyzed using EDX analysis. RESULTS The modified POSS structure and the number of amine branches were confirmed with1H-NMR spectroscopy. The resin containing 8 amine branches (P8) showed the same degree of conversion (DC%) as the resin containing DMAEMA (P > 0.05). Decreasing the amine branches in the POSS structure, however, revealed an increasing trend in DC%. The resin containing P8 showed the lowest shrinkage strain. By incorporating AMA-POSS into the resin system, the water sorption significantly decreased (P < 0.05). The flexural strength and modulus increased by adding P3 into the resin system (P < 0.05). EDX Si-map revealed that the co-Ini-linker was well dispersed in the resin matrix. SIGNIFICANCE The synthesized novel amine-methacrylate POSS nanostructures not only act as an amine co-initiator but also work as a reinforcing filler and a cross-linking agent.
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Tong QS, Xu W, Huang QY, Zhang YR, Shi XX, Huang H, Li HJ, Du JZ, Wang J. Multi-stimuli responsive poly(amidoamine) dendrimers with peripheral N-dialkylaminoethyl carbamate moieties. Polym Chem 2019. [DOI: 10.1039/c8py01605d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel type of multi-stimuli responsive dendrimer with thermo-, pH-, and CO2-responsiveness was developed through facile modification of polyamidoamine dendrimers with various N-dialkylaminoethyl carbamate moieties.
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Affiliation(s)
- Qi-Song Tong
- School of Biomedical Science and Engineering
- South China University of Technology
- Guangzhou 510006
- China
- Institutes for Life Sciences
| | - Wei Xu
- School of Biomedical Science and Engineering
- South China University of Technology
- Guangzhou 510006
- China
- Institutes for Life Sciences
| | - Qiu-Yue Huang
- Institutes for Life Sciences
- and School of Medicine
- South China University of Technology
- Guangzhou
- China
| | - Ya-Ru Zhang
- Institutes for Life Sciences
- and School of Medicine
- South China University of Technology
- Guangzhou
- China
| | - Xiao-Xiao Shi
- Institutes for Life Sciences
- and School of Medicine
- South China University of Technology
- Guangzhou
- China
| | - Hua Huang
- School of Biomedical Science and Engineering
- South China University of Technology
- Guangzhou 510006
- China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education
| | - Hong-Jun Li
- Institutes for Life Sciences
- and School of Medicine
- South China University of Technology
- Guangzhou
- China
| | - Jin-Zhi Du
- School of Biomedical Science and Engineering
- South China University of Technology
- Guangzhou 510006
- China
- Institutes for Life Sciences
| | - Jun Wang
- School of Biomedical Science and Engineering
- South China University of Technology
- Guangzhou 510006
- China
- Institutes for Life Sciences
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Cao M, Nie H, Hou Y, Han G, Zhang W. Synthesis of star thermoresponsive amphiphilic block copolymer nano-assemblies and the effect of topology on their thermoresponse. Polym Chem 2019. [DOI: 10.1039/c8py01617h] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Well-defined multi-arm star thermoresponsive block copolymer nano-assemblies of [poly(N-isopropylacrylamide)-block-polystyrene]n [(PNIPAM-b-PS)n] with n = 1, 2, 3 and 4 arms were synthesized by RAFT dispersion polymerization via polymerization-induced self-assembly.
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Affiliation(s)
- Mengjiao Cao
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Huijun Nie
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Yuwen Hou
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Guang Han
- State Key Laboratory of Special Functional Waterproof Materials
- Beijing Oriental Yuhong Waterproof Technology Co
- Ltd
- Beijing 100123
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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Cheng M, He H, Zhu H, Guo W, Chen W, Xue F, Zhou S, Chen X, Wang S. Preparation and properties of pH-responsive reversible-wettability biomass cellulose-based material for controllable oil/water separation. Carbohydr Polym 2019; 203:246-255. [DOI: 10.1016/j.carbpol.2018.09.051] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 09/13/2018] [Accepted: 09/19/2018] [Indexed: 01/17/2023]
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Bhat SI, Ahmadi Y, Ahmad S. Recent Advances in Structural Modifications of Hyperbranched Polymers and Their Applications. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01969] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shahidul Islam Bhat
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Younes Ahmadi
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Sharif Ahmad
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
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Chen W, He H, Zhu H, Cheng M, Li Y, Wang S. Thermo-Responsive Cellulose-Based Material with Switchable Wettability for Controllable Oil/Water Separation. Polymers (Basel) 2018; 10:E592. [PMID: 30966626 PMCID: PMC6403979 DOI: 10.3390/polym10060592] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/21/2018] [Accepted: 05/25/2018] [Indexed: 12/23/2022] Open
Abstract
A thermo-responsive cellulose-based material (cellulose-g-PNIPAAm) was prepared by grafting N-isopropylacrylamide (NIPAAm) onto bagasse pulp cellulose via Ce (IV)-initiated free radical polymerization. The surfaces of the obtained cellulose-g-PNIPAAm paper showed a rapid wettability conversion from being hydrophilic (water contact angles (WCA) of 0°) at 25 °C to becoming hydrophobic (WCA of 134.2°) at 45 °C. Furthermore, the thermo-responsive mechanism of cellulose-g-PNIPAAm was examined by the in situ variable-temperature 13C NMR, ¹H NMR and AFM analysis. At the same time, the resulting cellulose paper was applied for a switchable separation of oil/water mixtures. Water can pass through the paper under 45 °C, while oil is kept on the paper. When the temperature is above 45 °C, oil can permeate through the paper, while water cannot pass through the water. Moreover, the paper exhibited excellent regeneration performance after five cycles and maintained its switchable wettability.
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Affiliation(s)
- Wenbo Chen
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Hui He
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Hongxiang Zhu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Meixiao Cheng
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Yunhua Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China.
| | - Shuangfei Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China.
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