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Bi P, Zhu X, Tian L, Han J, Zhang W, Wang T. Preparation and Performance Study of HTPB- g-(PNIPAM/PEG) Thermoresponsive Polymer Brush. Polymers (Basel) 2024; 16:1248. [PMID: 38732717 PMCID: PMC11085726 DOI: 10.3390/polym16091248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 05/13/2024] Open
Abstract
In recent years, a great deal of work has been devoted to the development of thermoresponsive polymers that can be made into new types of smart materials. In this paper, a branched polymer, HTPB-g-(PNIPAM/PEG), with polyolefin chain segments as the backbone and having polyethylene glycol (PEG) and poly(N-isopropylacrylamide) (PNIPAM) as side chains was synthesized by ATRP and click reactions using N3-HTPB-Br as the macroinitiator. This initiator was designed and synthesized using hydroxyl-terminated polybutadiene (HTPB) as the substrate. The temperature-responsive behavior of the branched polymer was investigated. The lower critical solution temperature (LCST) of the branched polymer was determined by ultraviolet and visible spectrophotometry (UV-vis) and was found to be 35.2 °C. The relationship between the diameter size of micelles and temperature was determined by dynamic light scattering (DLS). It was found that the diameter size changed at 36 °C, which was nearly consistent with the result obtained by UV-vis. The results of the study indicate that HTPB-g-(PNIPAM/PEG) is a temperature-responsive polymer. At room temperature, the polymer can self-assemble into composite micelles, with the main chain as the core and the branched chain as the shell. When the temperature was increased beyond LCST, the polyolefin main chain along with the PNIPAM branched chain assembled to form the nucleus, and the PEG branched chain constituted the shell.
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Affiliation(s)
- Pengzhi Bi
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Faculty of Light Industry, Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Xiuzhong Zhu
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Faculty of Light Industry, Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
- Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi’an 710021, China
- Shandong Huatai Paper Co., Ltd. & Shandong Yellow Triangle Biotechnology Industry Research Institute Co., Ltd., Dongying 275335, China
| | - Li Tian
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Faculty of Light Industry, Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Jinbang Han
- State Key Laboratory of Biobased Material and Green Papermaking, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Faculty of Light Industry, Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Wanbin Zhang
- Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Tong Wang
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education and Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
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Zheng XC, Wu CL, Xiong J, Lei H. UV Photoinitiated Temperature-Sensitive Modification of Polypropylene Grafted with Poly(N-isopropylacrylamide). POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422700415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Temperature–regulated non-monotonic behavior of DNA immobilization on poly(N–isopropylacrylamide) (PNIPAm)–grafted surface. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Feng C, Mu JX, Ren CL. Regulation of oligonucleotide adsorption by a thermo and pH dual-responsive copolymer layer. Phys Chem Chem Phys 2021; 23:14296-14307. [PMID: 34160496 DOI: 10.1039/d1cp01644j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Oligonucleotides hold great promise as therapeutic agents to specifically and selectively inhibit gene expression. In order to achieve better targeting efficiency and treatment efficacy, nanocarriers that are dual-responsive to both temperature and pH are more attractive and suitable due to the fact that certain malignancies can cause a slight increase of local temperature and a minor decrease in extracellular pH around the tumor site at the same time. Here, we systematically study oligonucleotide adsorption on the poly(ethyleneimine)-b-poly(N-isopropylacrylamide) (PEI-b-PNIPAm) copolymer layer grafted on a planar surface and nanoparticles with various radii, where the single effect of temperature or pH alone on oligonucleotide adsorption has been extensively investigated, but the combined effect of temperature and pH is less discussed. The theoretical results show that the surface density of the adsorbed oligonucleotides exhibits thermo and pH dual-responsive behavior, in which temperature and pH exhibit a combined effect on the loading capacity of the oligonucleotides. The underlying molecular mechanism of the dual-responsive behavior is revealed. Besides, the effect of important but coupled parameters in nanocarrier design such as polymer surface coverage and length, salt concentration as well as surface curvature (inverse nanoparticle radius) that may influence the dual-responsive behavior of oligonucleotide adsorption is further discussed, which is of great significance to direct the optimal design of PNIPAm/PEI-based nanocarriers to improve the transfection efficiency by achieving the maximal loading capacity of oligonucleotides at different temperatures and pH values.
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Affiliation(s)
- Chao Feng
- State Key Laboratory of Metastable Materials Science & Technology and Hebei Key Laboratory of Microstructural Material Physics, School of Science, Yanshan University, Qinhuangdao, 066004, China.
| | - Jiang-Xue Mu
- State Key Laboratory of Metastable Materials Science & Technology and Hebei Key Laboratory of Microstructural Material Physics, School of Science, Yanshan University, Qinhuangdao, 066004, China.
| | - Chun-Lai Ren
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, China. and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
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Zhao P, Ni M, Chen C, Wang C, Yang P, Wang X, Li C, Xie Y, Fei J. A Novel Self‐protection Hydroquinone Electrochemical Sensor Based on Thermo‐sensitive Triblock Polymer PS‐PNIPAm‐PS. ELECTROANAL 2020. [DOI: 10.1002/elan.201900644] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pengcheng Zhao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of EducationCollege of ChemistryXiangtan University Xiangtan 411105 People's Republic of China
| | - Meijun Ni
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of EducationCollege of ChemistryXiangtan University Xiangtan 411105 People's Republic of China
| | - Chao Chen
- College of Materials and Chemical EngineeringHunan City University Yiyang 413000 People's Republic of China
| | - Chenxi Wang
- Key Laboratory for Green Organic Synthesis and Application of Hunan ProvinceXiangtan University Xiangtan 411105 People's Republic of China
- Hunan Institute of Advanced Sensing and Information TechnologyXiangtan University Xiangtan 411105 People's Republic of China
| | - Pingping Yang
- Key Laboratory for Green Organic Synthesis and Application of Hunan ProvinceXiangtan University Xiangtan 411105 People's Republic of China
- Hunan Institute of Advanced Sensing and Information TechnologyXiangtan University Xiangtan 411105 People's Republic of China
| | - Xiahui Wang
- Hunan Institute of Advanced Sensing and Information TechnologyXiangtan University Xiangtan 411105 People's Republic of China
| | - Chunyan Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of EducationCollege of ChemistryXiangtan University Xiangtan 411105 People's Republic of China
| | - Yixi Xie
- Key Laboratory for Green Organic Synthesis and Application of Hunan ProvinceXiangtan University Xiangtan 411105 People's Republic of China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of EducationCollege of ChemistryXiangtan University Xiangtan 411105 People's Republic of China
- Hunan Institute of Advanced Sensing and Information TechnologyXiangtan University Xiangtan 411105 People's Republic of China
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Wang YZ, Zhong H, Li XR, Zhang XQ, Cheng ZP, Zhang ZC, Zhang YJ, Chen P, Zhang LL, Ding LS, Wang JK. Electrochemical temperature-controlled switch for nonenzymatic biosensor based on Fe3O4-PNIPAM microgels. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113410] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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