1
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Wu X, Barner-Kowollik C. Fluorescence-readout as a powerful macromolecular characterisation tool. Chem Sci 2023; 14:12815-12849. [PMID: 38023522 PMCID: PMC10664555 DOI: 10.1039/d3sc04052f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/10/2023] [Indexed: 12/01/2023] Open
Abstract
The last few decades have witnessed significant progress in synthetic macromolecular chemistry, which can provide access to diverse macromolecules with varying structural complexities, topology and functionalities, bringing us closer to the aim of controlling soft matter material properties with molecular precision. To reach this goal, the development of advanced analytical techniques, allowing for micro-, molecular level and real-time investigation, is essential. Due to their appealing features, including high sensitivity, large contrast, fast and real-time response, as well as non-invasive characteristics, fluorescence-based techniques have emerged as a powerful tool for macromolecular characterisation to provide detailed information and give new and deep insights beyond those offered by commonly applied analytical methods. Herein, we critically examine how fluorescence phenomena, principles and techniques can be effectively exploited to characterise macromolecules and soft matter materials and to further unravel their constitution, by highlighting representative examples of recent advances across major areas of polymer and materials science, ranging from polymer molecular weight and conversion, architecture, conformation to polymer self-assembly to surfaces, gels and 3D printing. Finally, we discuss the opportunities for fluorescence-readout to further advance the development of macromolecules, leading to the design of polymers and soft matter materials with pre-determined and adaptable properties.
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Affiliation(s)
- Xingyu Wu
- School of Chemistry and Physics, Centre for Materials Science, Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australia
| | - Christopher Barner-Kowollik
- School of Chemistry and Physics, Centre for Materials Science, Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australia
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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2
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Ren S, Li H, Xu X, Zhao H, He W, Zhang L, Cheng Z. Unimolecular micelles from star-shaped block polymers by photocontrolled BIT-RDRP for PTT/PDT synergistic therapy. Biomater Sci 2023; 11:509-517. [PMID: 36533394 DOI: 10.1039/d2bm01727j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Unimolecular micelles (UIMs) exhibit promising potential in the precise diagnosis and accurate treatment of tumor tissues, a pressing problem in the field of medical treatment, because of their perfect stability in the complex and variable microenvironment. In this study, porphyrin-based four-armed star-shaped block polymers with narrow molar mass dispersity (Đ = 1.34) were facilely prepared by photocontrolled bromine-iodine transformation reversible-deactivation radical polymerization (BIT-RDRP). A photothermal conversion dye, ketocyanine, was covalently linked onto the PEG and then introduced into the polymers through a "grafting onto" strategy to obtain polymeric nanomaterial, THPP-4PMMA-b-4P(PEGMA-co-APMA)@NIR-800, with dual PTT/PDT function. The resulting polymers could form monodispersed UIMs in the water below critical aggregation concentration, meanwhile maintaining the capacities of singlet oxygen release and photothermal conversion. Importantly, the UIMs displayed excellent biocompatibility while exerting superior PTT and/or PDT therapeutic effects under the irradiation of specific wavelengths of light, according to in vitro cellular experiments, which is expected to become a new hot spot for cancer therapy and anti-tumor research. Overall, stable and powerful UIMs with dual PTT/PDT function is provided, which are expected to be competitive candidates in cancer therapy.
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Affiliation(s)
- Shusu Ren
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Suzhou key Laboratory of Macromolecular Design and Precision Synthesis; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Haihui Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Suzhou key Laboratory of Macromolecular Design and Precision Synthesis; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Xiang Xu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Suzhou key Laboratory of Macromolecular Design and Precision Synthesis; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Haitao Zhao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Suzhou key Laboratory of Macromolecular Design and Precision Synthesis; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Weiwei He
- State Key Laboratory of Radiation Medicine and Protection, School of Radiological and Interdisciplinary Sciences (RADX), Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China.
| | - Lifen Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Suzhou key Laboratory of Macromolecular Design and Precision Synthesis; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Zhenping Cheng
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Suzhou key Laboratory of Macromolecular Design and Precision Synthesis; College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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3
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Blosch SE, Scannelli SJ, Alaboalirat M, Matson JB. Complex Polymer Architectures Using Ring-Opening Metathesis Polymerization: Synthesis, Applications, and Practical Considerations. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Sarah E. Blosch
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Samantha J. Scannelli
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Mohammed Alaboalirat
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - John B. Matson
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, United States
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4
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Mutlu H. Chemical design and synthesis of macromolecular profluorescent nitroxide systems as self-reporting probes. Polym Chem 2022. [DOI: 10.1039/d1py01645h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The objective of this mini-review article is to highlight the importance of the chemical design towards the synthesis of polymeric profluorescent nitroxides applicable as self-reporting probes.
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Affiliation(s)
- Hatice Mutlu
- Soft Matter Synthesis Laboratory, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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5
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Geiselhart CM, Mutlu H, Barner‐Kowollik C. Vorbeugen oder Heilen – die beispiellose Notwendigkeit von selbstberichtenden Materialien. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christina M. Geiselhart
- Soft Matter Synthesis Laboratory Institut für Biologische Grenzflächen 3 Hermann-von-Helmholtz-Platz 1 76344 Eggenstein Leopoldshafen Deutschland
- Macromolecular Architectures Institut für Technische Chemie und Polymerchemie (ITCP) Karlsruher Institut für Technologie (KIT) Engesserstraße 18 76131 Karlsruhe Deutschland
| | - Hatice Mutlu
- Soft Matter Synthesis Laboratory Institut für Biologische Grenzflächen 3 Hermann-von-Helmholtz-Platz 1 76344 Eggenstein Leopoldshafen Deutschland
- Macromolecular Architectures Institut für Technische Chemie und Polymerchemie (ITCP) Karlsruher Institut für Technologie (KIT) Engesserstraße 18 76131 Karlsruhe Deutschland
| | - Christopher Barner‐Kowollik
- Macromolecular Architectures Institut für Technische Chemie und Polymerchemie (ITCP) Karlsruher Institut für Technologie (KIT) Engesserstraße 18 76131 Karlsruhe Deutschland
- Centre for Materials Science Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australien
- School of Chemistry and Physics Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australien
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6
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Geiselhart CM, Mutlu H, Barner‐Kowollik C. Prevent or Cure-The Unprecedented Need for Self-Reporting Materials. Angew Chem Int Ed Engl 2021; 60:17290-17313. [PMID: 33217121 PMCID: PMC8359351 DOI: 10.1002/anie.202012592] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/08/2020] [Indexed: 01/08/2023]
Abstract
Self-reporting smart materials are highly relevant in modern soft matter materials science, as they allow for the autonomous detection of changes in synthetic polymers, materials, and composites. Despite critical advantages of such materials, for example, prolonged lifetime or prevention of disastrous material failures, they have gained much less attention than self-healing materials. However, as diagnosis is critical for any therapy, it is of the utmost importance to report the existence of system changes and their exact location to prevent them from spreading. Thus, we herein critically review the chemistry of self-reporting soft matter materials systems and highlight how current challenges and limitations may be overcome by successfully transferring self-reporting research concepts from the laboratory to the real world. Especially in the space of diagnostic self-reporting systems, the recent SARS-CoV-2 (COVID-19) pandemic indicates an urgent need for such concepts that may be able to detect the presence of viruses or bacteria on and within materials in a self-reporting fashion.
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Affiliation(s)
- Christina M. Geiselhart
- Soft Matter Synthesis LaboratoryInstitute for Biological Interfaces 3Hermann-von-Helmholtz-Platz 176344Eggenstein LeopoldshafenGermany
- Macromolecular ArchitecturesInstitute for Technical Chemistry and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstrasse 1876131KarlsruheGermany
| | - Hatice Mutlu
- Soft Matter Synthesis LaboratoryInstitute for Biological Interfaces 3Hermann-von-Helmholtz-Platz 176344Eggenstein LeopoldshafenGermany
- Macromolecular ArchitecturesInstitute for Technical Chemistry and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstrasse 1876131KarlsruheGermany
| | - Christopher Barner‐Kowollik
- Macromolecular ArchitecturesInstitute for Technical Chemistry and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)Engesserstrasse 1876131KarlsruheGermany
- Centre for Materials ScienceQueensland University of Technology (QUT)2 George StreetBrisbaneQLD4000Australia
- School of Chemistry and PhysicsQueensland University of Technology (QUT)2 George StreetBrisbaneQLD4000Australia
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7
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Zhu H, Yang J, Wu M, Wu Q, Liu J, Zhang J. Effect of ketal group in castor oil acid‐based plasticizer on the properties of poly(vinyl chloride). J Appl Polym Sci 2021. [DOI: 10.1002/app.51274] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Huichao Zhu
- School of Chemistry and Chemical Engineering Anhui University Hefei China
| | - Jianjun Yang
- School of Chemistry and Chemical Engineering Anhui University Hefei China
- Anhui Province Key Laboratory of Environment‐friendly Polymer Materials Anhui University Hefei China
| | - Mingyuan Wu
- School of Chemistry and Chemical Engineering Anhui University Hefei China
- Anhui Province Key Laboratory of Environment‐friendly Polymer Materials Anhui University Hefei China
| | - Qingyun Wu
- School of Chemistry and Chemical Engineering Anhui University Hefei China
- Anhui Province Key Laboratory of Environment‐friendly Polymer Materials Anhui University Hefei China
| | - Jiuyi Liu
- School of Chemistry and Chemical Engineering Anhui University Hefei China
- Anhui Province Key Laboratory of Environment‐friendly Polymer Materials Anhui University Hefei China
| | - Jianan Zhang
- School of Chemistry and Chemical Engineering Anhui University Hefei China
- Anhui Province Key Laboratory of Environment‐friendly Polymer Materials Anhui University Hefei China
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8
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Click chemistry strategies for the accelerated synthesis of functional macromolecules. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210126] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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9
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Zhang Y, Cao X, Gao Y, Xie Y, Huang Z, Zhang Z, Zhu X. Bridging from the Sequence to Architecture: Graft Copolymers Engineering
via
Successive Latent Monomer and Grafting‐from Strategies
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yajie Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Xiaohuan Cao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Yang Gao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Yujie Xie
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Zhihao Huang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
| | - Zhengbiao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University Suzhou Jiangsu 215123 China
| | - Xiulin Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou Jiangsu 215123 China
- Global Institute of Software Technology, No. 5 Qingshan Road, Suzhou National Hi‐Tech District Suzhou Jiangsu 215163 China
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10
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Li J, Wei YJ, Yang XL, Wu WX, Zhang MQ, Li MY, Hu ZE, Liu YH, Wang N, Yu XQ. Rational Construction of a Mitochondrial Targeting, Fluorescent Self-Reporting Drug-Delivery Platform for Combined Enhancement of Endogenous ROS Responsiveness. ACS APPLIED MATERIALS & INTERFACES 2020; 12:32432-32445. [PMID: 32573194 DOI: 10.1021/acsami.0c08336] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To maximize the utilization and response to the high oxidative stress environment of tumor sites while avoiding the dilemma of enhancing reactive oxygen species (ROS) response in a single way, mitochondrial targeting combined with fluorescent self-reporting polymeric nanocarriers (1K-TPP and 2K-TPP) with grafted structures were synthesized via a chemoenzymatic method in a high yield to simultaneously enhance the drug delivery of endogenous ROS responses. 1K-TPP and 2K-TPP loaded doxorubicin (DOX) at a high content over 12% and formed homogeneous spherical micelles. In vitro, both of them showed promising high sensitivity (detection limit below 200 nM H2O2), fast response, and ratiometric fluorescent self-reporting properties (fluorescent enhancement more than 200 times) to ROS and excellent stability under physiological conditions, while achieving a rapid release of the DOX in response to 1 mM H2O2. Cell co-localization experiments exhibited that they had favorable mitochondrial targeting, and mitochondrial isolation experiments also confirmed that the TPP-modified 1K-TPP selectively accumulated nearly three times in mitochondria than that in total cells. The internalization of 1K-TPP and 2K-TPP into cancer cells was greatly improved by nearly 200% compared to that of unmodified control (1K-OH and 2K-OH) and also explored a unique energy-dependent endocytosis. Furthermore, stimulation of endogenous ROS enhanced the green fluorescence intensity (up to 51.4%) of the linked probe so as to destroy the internal structure of the nanocarriers, achieving self-reporting of the drug's intracellular release and tracking of the intracellular location of nanocarriers. The cytotoxicity of DOX-loaded 1K-TPP and 2K-TPP in tumor cells with a higher ROS content showed statistical superiority to that of 1K-OH and 2K-OH, benefiting from the extremely good endogenous ROS response sensitivity leading to the differential selective release of drugs. These results demonstrate the potential of 1K-TPP and 2K-TPP, especially for 1K-TPP, as mitochondria-targeted, fluorescent self-reporting nanocarriers for combined enhancement of endogenous ROS responsiveness.
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Affiliation(s)
- Jun Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yun-Jie Wei
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xian-Ling Yang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wan-Xia Wu
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Meng-Qian Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Meng-Yang Li
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zu-E Hu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Na Wang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, China
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11
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Chen J, Nie X, Jiang J. Synthesis of a Novel Bio-Oil-Based Hyperbranched Ester Plasticizer and Its Effects on Poly(vinyl chloride) Soft Films. ACS OMEGA 2020; 5:5480-5486. [PMID: 32201840 PMCID: PMC7081639 DOI: 10.1021/acsomega.0c00119] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 02/19/2020] [Indexed: 06/10/2023]
Abstract
A novel hyperbranched ester plasticizer (SOHE) was synthesized from soybean oil. FTIR, 1H NMR, and 13C NMR spectroscopies were used to analyze the chemical structure of SOHE. SOHE was added into poly(vinyl chloride) (PVC). Thermal, mechanical, and dynamic mechanical properties of PVC samples were studied with thermal gravimetric analysis, dynamic mechanical analysis, and tensile tests. The results of SOHE substitution of petroleum-based dioctyl phthalate (DOP) in soft PVC samples were studied. The results indicated that PVC blends mixed with the obtained plasticizer showed higher thermal stability and flexibility. When DOP was completely replaced with SOHE, the T i, T 10, and T 50 of the films were raised to 267.5, 275.3, and 338.0 °C, respectively. The plasticizing mechanism was also investigated. The volatility resistance and extraction were studied, which results indicated that the migration stability of PVC samples was significantly enhanced with the increasing amount of SOHE.
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Affiliation(s)
- Jie Chen
- Institute
of Chemical Industry of Forestry Products, National Engineering Laboratory
for Biomass Chemical Utilization, and Key Laboratory of Biomass Energy
and Material, Chinese Academy of Forestry, Nanjing, Jiangsu 210042, China
- Co-Innovation
Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu 210042, China
| | - Xiaoan Nie
- Institute
of Chemical Industry of Forestry Products, National Engineering Laboratory
for Biomass Chemical Utilization, and Key Laboratory of Biomass Energy
and Material, Chinese Academy of Forestry, Nanjing, Jiangsu 210042, China
| | - Jianchun Jiang
- Institute
of Chemical Industry of Forestry Products, National Engineering Laboratory
for Biomass Chemical Utilization, and Key Laboratory of Biomass Energy
and Material, Chinese Academy of Forestry, Nanjing, Jiangsu 210042, China
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12
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Eing M, Tuten BT, Blinco JP, Barner‐Kowollik C. Visible Light Activation of Spin‐Silenced Fluorescence. Chemistry 2018; 24:12246-12249. [DOI: 10.1002/chem.201800732] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Matthias Eing
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australia
- Macromolecular Architectures Institut fur Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76128 Karlsruhe Germany
| | - Bryan T. Tuten
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australia
| | - James P. Blinco
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australia
- Macromolecular Architectures Institut fur Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76128 Karlsruhe Germany
| | - Christopher Barner‐Kowollik
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 Australia
- Macromolecular Architectures Institut fur Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76128 Karlsruhe Germany
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13
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Sutthasupa S, Sanda F. Macroporous scaffolds: Molecular brushes based on oligo(lactic acid)–amino acid–indomethacin conjugated poly(norbornene)s. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2017.11.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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14
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Synthesis and Properties of a Novel Environmental Epoxidized Glycidyl Ester of Ricinoleic Acetic Ester Plasticizer for Poly(vinyl chloride). Polymers (Basel) 2017; 9:polym9120640. [PMID: 30965956 PMCID: PMC6418936 DOI: 10.3390/polym9120640] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 11/16/2017] [Accepted: 11/18/2017] [Indexed: 11/28/2022] Open
Abstract
A novel renewable plasticizer based on castor oil, epoxidized glycidyl ester of ricinoleic acetic ester (EGERAE), was synthesized and applied into Poly(vinyl chloride) (PVC) for the first time. Its molecular structure was characterized by FT-IR and 1H NMR. The effects of replacement of petroleum-based commercial plasticizer dioctyl phthalate (DOP) with EGERAE in poly(vinyl chloride) (PVC) films were researched. Thermal stability, dynamic mechanical property and mechanical properties of PVC films were investigated with thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA) and tensile tests. The results indicated that this castor oil-based plasticizer was able to improve the thermal stability of PVC blends when partially of completely substituting for DOP. Furthermore, EGERAE endowed PVC resin with enhanced flexibility. In addition, the exudation, volatility and extraction resistance characteristics of plasticizers were researched. The degradation mechanism and possible interaction between EGERAE and PVC molecules in the plasticized system were also investigated.
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15
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Paturej J, Kreer T. Hierarchical excluded volume screening in solutions of bottlebrush polymers. SOFT MATTER 2017; 13:8534-8541. [PMID: 29095470 DOI: 10.1039/c7sm01968h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polymer bottlebrushes provide intriguing features being relevant both in nature and in synthetic systems. While their presence in the articular cartilage optimizes synovial joint lubrication, bottlebrushes offer pathways for fascinating applications, such as within super-soft elastomers or for drug delivery. However, the current theoretical understanding lacks completeness, primarily due to the complicated interplay of many length scales. Herein, we develop an analytical model that demonstrates how structural properties of bottlebrushes depend on the concentration, ranging from dilute solutions to highly concentrated melts. The validity of our model is supported by data from extensive molecular dynamics simulations. We demonstrate that the hierarchical structure of bottlebrushes dictates a sequence of conformational changes as the solution concentration increases. The effect is mediated by screening of excluded volume interactions at subsequent structural parts of the bottlebrushes. Our findings provide important insights that should enable improved customization of novel materials based on the architectural design of polymer bottlebrushes.
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Affiliation(s)
- Jarosław Paturej
- Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
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16
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Chang AB, Lin TP, Thompson NB, Luo SX, Liberman-Martin AL, Chen HY, Lee B, Grubbs RH. Design, Synthesis, and Self-Assembly of Polymers with Tailored Graft Distributions. J Am Chem Soc 2017; 139:17683-17693. [PMID: 29117478 DOI: 10.1021/jacs.7b10525] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Grafting density and graft distribution impact the chain dimensions and physical properties of polymers. However, achieving precise control over these structural parameters presents long-standing synthetic challenges. In this report, we introduce a versatile strategy to synthesize polymers with tailored architectures via grafting-through ring-opening metathesis polymerization (ROMP). One-pot copolymerization of an ω-norbornenyl macromonomer and a discrete norbornenyl comonomer (diluent) provides opportunities to control the backbone sequence and therefore the side chain distribution. Toward sequence control, the homopolymerization kinetics of 23 diluents were studied, representing diverse variations in the stereochemistry, anchor groups, and substituents. These modifications tuned the homopolymerization rate constants over 2 orders of magnitude (0.36 M-1 s-1 < khomo < 82 M-1 s-1). Rate trends were identified and elucidated by complementary mechanistic and density functional theory (DFT) studies. Building on this foundation, complex architectures were achieved through copolymerizations of selected diluents with a poly(d,l-lactide) (PLA), polydimethylsiloxane (PDMS), or polystyrene (PS) macromonomer. The cross-propagation rate constants were obtained by nonlinear least-squares fitting of the instantaneous comonomer concentrations according to the Mayo-Lewis terminal model. In-depth kinetic analyses indicate a wide range of accessible macromonomer/diluent reactivity ratios (0.08 < r1/r2 < 20), corresponding to blocky, gradient, or random backbone sequences. We further demonstrated the versatility of this copolymerization approach by synthesizing AB graft diblock polymers with tapered, uniform, and inverse-tapered molecular "shapes." Small-angle X-ray scattering analysis of the self-assembled structures illustrates effects of the graft distribution on the domain spacing and backbone conformation. Collectively, the insights provided herein into the ROMP mechanism, monomer design, and homo- and copolymerization rate trends offer a general strategy for the design and synthesis of graft polymers with arbitrary architectures. Controlled copolymerization therefore expands the parameter space for molecular and materials design.
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Affiliation(s)
- Alice B Chang
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Tzu-Pin Lin
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Niklas B Thompson
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Shao-Xiong Luo
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Allegra L Liberman-Martin
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Hsiang-Yun Chen
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Byeongdu Lee
- X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Robert H Grubbs
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
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17
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Atanase L, Desbrieres J, Riess G. Micellization of synthetic and polysaccharides-based graft copolymers in aqueous media. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.06.001] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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18
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Pearce AK, Travanut A, Couturaud B, Taresco V, Howdle SM, Alexander MR, Alexander C. Versatile Routes to Functional RAFT Chain Transfer Agents through the Passerini Multicomponent Reaction. ACS Macro Lett 2017; 6:781-785. [PMID: 35650862 DOI: 10.1021/acsmacrolett.7b00415] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The widespread adoption of RAFT polymerization stems partly from the ease and utility of installing a functional chain transfer agent onto the ends of the generated polymer chains. In parallel, the Passerini multicomponent reaction offers great versatility in converting a wide range of easily accessible building blocks to functional materials. In this work, we have combined the two approaches such that a single, commonly available, RAFT agent is used in Passerini reactions to generate a variety of multifunctional RAFT chain transfer agents containing ester linkages. Reactions to generate the multifunctional RAFT agents took place under mild conditions and in good yields. The resulting Passerini-RAFT agents were able to exert control over radical polymerization to generate materials of well-defined molecular weights and dispersity. Furthermore, the presence in these polymer cores of ester and amide functionality through the Passerini chemistries, provided regions in the materials which are inherently biodegradable, facilitating any subsequent biomedical applications. The work overall thus demonstrates a versatile and facile synthetic route to multi functional RAFT chain transfer agents and biodegradable polymers.
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Affiliation(s)
- Amanda K. Pearce
- Molecular Therapeutics and Formulation Division, School of Pharmacy, ‡EPSRC Programme Grant
in Next Generation Biomaterials, School of Pharmacy, §School of Chemistry, and ∥Advanced Healthcare and Materials
Division, School of Pharmacy, The University of Nottingham, University Park, NG72RD, Nottingham United Kingdom
| | - Alessandra Travanut
- Molecular Therapeutics and Formulation Division, School of Pharmacy, ‡EPSRC Programme Grant
in Next Generation Biomaterials, School of Pharmacy, §School of Chemistry, and ∥Advanced Healthcare and Materials
Division, School of Pharmacy, The University of Nottingham, University Park, NG72RD, Nottingham United Kingdom
| | - Benoit Couturaud
- Molecular Therapeutics and Formulation Division, School of Pharmacy, ‡EPSRC Programme Grant
in Next Generation Biomaterials, School of Pharmacy, §School of Chemistry, and ∥Advanced Healthcare and Materials
Division, School of Pharmacy, The University of Nottingham, University Park, NG72RD, Nottingham United Kingdom
| | - Vincenzo Taresco
- Molecular Therapeutics and Formulation Division, School of Pharmacy, ‡EPSRC Programme Grant
in Next Generation Biomaterials, School of Pharmacy, §School of Chemistry, and ∥Advanced Healthcare and Materials
Division, School of Pharmacy, The University of Nottingham, University Park, NG72RD, Nottingham United Kingdom
| | - Steven M. Howdle
- Molecular Therapeutics and Formulation Division, School of Pharmacy, ‡EPSRC Programme Grant
in Next Generation Biomaterials, School of Pharmacy, §School of Chemistry, and ∥Advanced Healthcare and Materials
Division, School of Pharmacy, The University of Nottingham, University Park, NG72RD, Nottingham United Kingdom
| | - Morgan R. Alexander
- Molecular Therapeutics and Formulation Division, School of Pharmacy, ‡EPSRC Programme Grant
in Next Generation Biomaterials, School of Pharmacy, §School of Chemistry, and ∥Advanced Healthcare and Materials
Division, School of Pharmacy, The University of Nottingham, University Park, NG72RD, Nottingham United Kingdom
| | - Cameron Alexander
- Molecular Therapeutics and Formulation Division, School of Pharmacy, ‡EPSRC Programme Grant
in Next Generation Biomaterials, School of Pharmacy, §School of Chemistry, and ∥Advanced Healthcare and Materials
Division, School of Pharmacy, The University of Nottingham, University Park, NG72RD, Nottingham United Kingdom
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19
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Lin TP, Chang AB, Chen HY, Liberman-Martin AL, Bates CM, Voegtle MJ, Bauer CA, Grubbs RH. Control of Grafting Density and Distribution in Graft Polymers by Living Ring-Opening Metathesis Copolymerization. J Am Chem Soc 2017; 139:3896-3903. [DOI: 10.1021/jacs.7b00791] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tzu-Pin Lin
- Division
of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Alice B. Chang
- Division
of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Hsiang-Yun Chen
- Division
of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Allegra L. Liberman-Martin
- Division
of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | | | - Matthew J. Voegtle
- Department
of Chemistry, Whittier College, Whittier, California 90608, United States
| | - Christina A. Bauer
- Department
of Chemistry, Whittier College, Whittier, California 90608, United States
| | - Robert H. Grubbs
- Division
of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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20
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Mutlu H, Schmitt CW, Wedler-Jasinski N, Woehlk H, Fairfull-Smith KE, Blinco JP, Barner-Kowollik C. Spin fluorescence silencing enables an efficient thermally driven self-reporting polymer release system. Polym Chem 2017. [DOI: 10.1039/c7py01437f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A self-reporting profluorescent release system driven by the thermo-reversible dynamic covalent ligation of chromophores to polymer chain, whose fluorescence is silenced by unpaired spins of nitroxides prior to release is introduced.
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Affiliation(s)
- Hatice Mutlu
- Soft Matter Synthesis Laboratory
- Institute for Biological Interfaces (IBG 3)
- Karlsruhe Institute of Technology (KIT)
- 76344 Karlsruhe
- Germany
| | - Christian W. Schmitt
- Macromolecular Architectures
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Nils Wedler-Jasinski
- Macromolecular Architectures
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Hendrik Woehlk
- Macromolecular Architectures
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Kathryn E. Fairfull-Smith
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- QLD 4000
- Australia
| | - James P. Blinco
- Macromolecular Architectures
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Christopher Barner-Kowollik
- Soft Matter Synthesis Laboratory
- Institute for Biological Interfaces (IBG 3)
- Karlsruhe Institute of Technology (KIT)
- 76344 Karlsruhe
- Germany
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21
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Geng Y, Wang ZF, Lin BP, Yang H. Amphiphilic Diblock Co-polymers Bearing a Cysteine Junction Group: Synthesis, Encapsulation of Inorganic Nanoparticles, and Near-Infrared Photoresponsive Properties. Chemistry 2016; 22:18197-18207. [DOI: 10.1002/chem.201603905] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Yi Geng
- School of Chemistry and Chemical Engineering; Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research; Jiangsu Optoelectronic Functional Materials and Engineering Laboratory; Southeast University; Nanjing 211189 P.R. China
| | - Zhi-Fei Wang
- School of Chemistry and Chemical Engineering; Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research; Jiangsu Optoelectronic Functional Materials and Engineering Laboratory; Southeast University; Nanjing 211189 P.R. China
| | - Bao-Ping Lin
- School of Chemistry and Chemical Engineering; Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research; Jiangsu Optoelectronic Functional Materials and Engineering Laboratory; Southeast University; Nanjing 211189 P.R. China
| | - Hong Yang
- School of Chemistry and Chemical Engineering; Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research; Jiangsu Optoelectronic Functional Materials and Engineering Laboratory; Southeast University; Nanjing 211189 P.R. China
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22
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Chen J, Li X, Wang Y, Li K, Huang J, Jiang J, Nie X. Synthesis and application of a novel environmental plasticizer based on cardanol for poly(vinyl chloride). J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.05.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Sun H, Dobbins DJ, Dai Y, Kabb CP, Wu S, Alfurhood JA, Rinaldi C, Sumerlin BS. Radical Departure: Thermally-Triggered Degradation of Azo-Containing Poly(β-thioester)s. ACS Macro Lett 2016; 5:688-693. [PMID: 35614673 DOI: 10.1021/acsmacrolett.6b00327] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The design and synthesis of a new class of thermally-labile poly(β-thioester)s is reported. Aliphatic azo linkages were incorporated into the main chain of the polymers to allow for degradation to lower molecular weights upon heating. These polymers displayed a temperature-dependent degradation profile with a significant increase in decomposition rate as the temperature was raised from 60 to 95 °C. This approach was further extended to prepare amphiphilic triblock copolymers containing poly(β-thioester)s and poly(ethylene glycol) (PEG). The resulting block copolymers were capable of self-assembly into micelles in water. Moreover, the assembled nanoparticles underwent dissociation as a result of exposure to heat.
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Affiliation(s)
- Hao Sun
- George and Josephine Butler Polymer Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, ‡Department of Chemical
Engineering, and §J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida, United States
| | - Daniel J. Dobbins
- George and Josephine Butler Polymer Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, ‡Department of Chemical
Engineering, and §J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida, United States
| | - Yuqiong Dai
- George and Josephine Butler Polymer Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, ‡Department of Chemical
Engineering, and §J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida, United States
| | - Christopher P. Kabb
- George and Josephine Butler Polymer Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, ‡Department of Chemical
Engineering, and §J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida, United States
| | - Shijian Wu
- George and Josephine Butler Polymer Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, ‡Department of Chemical
Engineering, and §J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida, United States
| | - Jawaher A. Alfurhood
- George and Josephine Butler Polymer Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, ‡Department of Chemical
Engineering, and §J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida, United States
| | - Carlos Rinaldi
- George and Josephine Butler Polymer Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, ‡Department of Chemical
Engineering, and §J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida, United States
| | - Brent S. Sumerlin
- George and Josephine Butler Polymer Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, ‡Department of Chemical
Engineering, and §J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, P.O. Box 117200, Gainesville, Florida, United States
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24
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Chen J, Li X, Wang Y, Huang J, Li K, Nie X, Jiang J. Epoxidized dimeric acid methyl ester derived from rubber seed oil and its application as secondary plasticizer. J Appl Polym Sci 2016. [DOI: 10.1002/app.43668] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jie Chen
- Institute of Chemical Industry of Forestry Products; Chinese Academy of Forestry; National Engineering Laboratory for Biomass Chemical Utilization; Key Laboratory of Biomass Energy and Material; Nanjing Jiangsu 210042 China
| | - Xiaoying Li
- Institute of Chemical Industry of Forestry Products; Chinese Academy of Forestry; National Engineering Laboratory for Biomass Chemical Utilization; Key Laboratory of Biomass Energy and Material; Nanjing Jiangsu 210042 China
| | - Yigang Wang
- Institute of Chemical Industry of Forestry Products; Chinese Academy of Forestry; National Engineering Laboratory for Biomass Chemical Utilization; Key Laboratory of Biomass Energy and Material; Nanjing Jiangsu 210042 China
| | - Jinrui Huang
- Institute of Chemical Industry of Forestry Products; Chinese Academy of Forestry; National Engineering Laboratory for Biomass Chemical Utilization; Key Laboratory of Biomass Energy and Material; Nanjing Jiangsu 210042 China
| | - Ke Li
- Institute of Chemical Industry of Forestry Products; Chinese Academy of Forestry; National Engineering Laboratory for Biomass Chemical Utilization; Key Laboratory of Biomass Energy and Material; Nanjing Jiangsu 210042 China
| | - Xiaoan Nie
- Institute of Chemical Industry of Forestry Products; Chinese Academy of Forestry; National Engineering Laboratory for Biomass Chemical Utilization; Key Laboratory of Biomass Energy and Material; Nanjing Jiangsu 210042 China
- Institute of New Technology of Forestry; Chinese Academy of Forestry; Beijing 100091 China
| | - Jianchun Jiang
- Institute of Chemical Industry of Forestry Products; Chinese Academy of Forestry; National Engineering Laboratory for Biomass Chemical Utilization; Key Laboratory of Biomass Energy and Material; Nanjing Jiangsu 210042 China
- Institute of New Technology of Forestry; Chinese Academy of Forestry; Beijing 100091 China
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25
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Chen J, Liu Z, Li X, Liu P, Jiang J, Nie X. Thermal behavior of epoxidized cardanol diethyl phosphate as novel renewable plasticizer for poly(vinyl chloride). Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.01.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Robin MP, Osborne SAM, Pikramenou Z, Raymond JE, O'Reilly RK. Fluorescent Block Copolymer Micelles That Can Self-Report on Their Assembly and Small Molecule Encapsulation. Macromolecules 2016; 49:653-662. [PMID: 27065494 PMCID: PMC4819497 DOI: 10.1021/acs.macromol.5b02152] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 12/11/2015] [Indexed: 01/23/2023]
Abstract
![]()
Block copolymer micelles have been
prepared with a dithiomaleimide
(DTM) fluorophore located in either the core or shell. Poly(triethylene
glycol acrylate)-b-poly(tert-butyl
acrylate) (P(TEGA)-b-P(tBA)) was
synthesized by RAFT polymerization, with a DTM-functional acrylate
monomer copolymerized into either the core forming P(tBA) block or the shell forming P(TEGA) block. Self-assembly by direct
dissolution afforded spherical micelles with Rh of ca. 35 nm. Core-labeled micelles (CLMs)
displayed bright emission (Φf = 17%) due to good
protection of the fluorophore, whereas shell-labeled micelles (SLMs)
had lower efficiency emission due to collisional quenching in the
solvated corona. The transition from micelles to polymer unimers upon
dilution could be detected by measuring the emission intensity of
the solutions. For the core-labeled micelles, the fluorescence lifetime
was also responsive to the supramolecular state, the lifetime being
significantly longer for the micelles (τAv,I = 19
ns) than for the polymer unimers (τAv,I = 9 ns).
The core-labeled micelles could also self-report on the presence of
a fluorescent hydrophobic guest molecule (Nile Red) as a result of
Förster resonance energy transfer (FRET) between the DTM fluorophore
and the guest. The sensitivity of the DTM fluorophore to its environment
therefore provides a simple handle to obtain detailed structural information
for the labeled polymer micelles. A case will also be made for the
application superiority of core-labeled micelles over shell-labeled
micelles for the DTM fluorophore.
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Affiliation(s)
- Mathew P Robin
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Shani A M Osborne
- School of Chemistry, The University of Birmingham , Edgbaston B15 2TT, U.K
| | - Zoe Pikramenou
- School of Chemistry, The University of Birmingham , Edgbaston B15 2TT, U.K
| | - Jeffery E Raymond
- Department of Chemistry and Laboratory for Synthetic-Biologic Interactions, Texas A&M University , College Station, Texas 77842-3012, United States
| | - Rachel K O'Reilly
- Department of Chemistry, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, U.K
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27
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Buzhor M, Harnoy AJ, Tirosh E, Barak A, Schwartz T, Amir RJ. Supramolecular Translation of Enzymatically Triggered Disassembly of Micelles into Tunable Fluorescent Responses. Chemistry 2015; 21:15633-8. [PMID: 26366522 DOI: 10.1002/chem.201502988] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Indexed: 01/22/2023]
Abstract
The need for advanced fluorescent imaging and delivery platforms has motivated the development of smart probes that change their fluorescence in response to external stimuli. Here a new molecular design of fluorescently labeled PEG-dendron hybrids that self-assemble into enzyme-responsive micelles with tunable fluorescent responses is reported. In the assembled state, the fluorescence of the dyes is quenched or shifted due to intermolecular interactions. Upon enzymatic cleavage of the hydrophobic end-groups, the labeled polymeric hybrids become hydrophilic, and the micelles disassemble. This supramolecular change is translated into a spectral response as the dye-dye interactions are eliminated and the intrinsic fluorescence is regained. We demonstrate the utilization of this molecular design to generate both Turn-On and spectral shift responses by adjusting the type of the labeling dye. This approach enables transformation of non-responsive labeling dyes into smart fluorescent probes.
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Affiliation(s)
- Marina Buzhor
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Assaf J Harnoy
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Einat Tirosh
- Department of Physical Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Ayana Barak
- Department of Physical Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Tal Schwartz
- Department of Physical Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel).,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel)
| | - Roey J Amir
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978 (Israel). .,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978 (Israel).
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