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Sunitha K, Mahesh S, Suchithra C, Unnikrishnan G, Reghunadhan Nair CP. Comb like amphiphilic graft copolymers bearing PDMS and PEO side chains: synthesis and solvent assisted self-assembly behavior. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03128-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Zhao P, Deng M, Yang Y, Zhang J, Zhang Y. Synthesis and Self-Assembly of Thermoresponsive Biohybrid Graft Copolymers Based on a Combination of Passerini Multicomponent Reaction and Molecular Recognition. Macromol Rapid Commun 2021; 42:e2100424. [PMID: 34505724 DOI: 10.1002/marc.202100424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/07/2021] [Indexed: 12/25/2022]
Abstract
Amphiphilic graft copolymers exhibit fascinating self-assembly behaviors. Their molecular architectures significantly affect the morphology and functionality of the self-assemblies. Considering the potential application of amphiphilic graft copolymers in the fabrication of nanocarriers, it is essential to synthesize well-defined graft copolymers with desired functional groups. Herein, the Passerini reaction and molecular recognition are introduced to the synthesis of functional thermoresponsive graft copolymers. A bifunctional monomer 2-((adamantan-1-yl)amino)-1-(4-((2-bromo-2-methylpropanoyl)oxy)phenyl)-2-oxoethyl methacrylate (ABMA) with a bromo group for atom transfer radical polymerization (ATRP) and an adamantyl group for molecular recognition is synthesized through the Passerini reaction. The graft copolymers are prepared by reversible addition-fragmentation transfer (RAFT) copolymerization of ABMA and oligo(ethylene glycol) methyl ether methacrylate (OEGMA) followed by RAFT end group removal and ATRP of di(ethylene glycol)methyl ether methacrylate (DEGMA) initiated by the ABMA units. The graft copolymer P(OEGMA-co-ABMA)-g-PDEGMA can be functionalized with β-cyclodextrin modified peptides, affording a thermoresponsive biohybrid graft copolymer. At a temperature above its lower critical solution temperature, the biohybrid graft copolymer self-assembles into peptide-modified polymersomes.
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Affiliation(s)
- Peiqiong Zhao
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Meigui Deng
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Yongfang Yang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Jimin Zhang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Yue Zhang
- Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
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3
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Ren L, Niu Q, Zhao J, Qiang T. Amphiphilic hyperbranched polymers: synthesis, characterization and self-assembly performance. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2020. [DOI: 10.1186/s42825-019-0015-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Abstract
A series of amphiphilic hyperbranched polymers (AHP-s, the “s” refers to the algebra of AHP) were synthesized by the reaction between hydroxyl-terminated hyperbranched polymers (HBP-s, the “s” refers to the algebra of HBP) and palmitoyl chloride. FTIR, NMR and GPC were used to determine the structure of AHP-s, the results showed that AHP-s exhibits core-shell structure. The thermal properties of polymers were investigated by DSC and TGA. It was found that AHP-2, AHP-3 and AHP-4 display higher thermal stability than AHP-1 (AHP-1, AHP-2, AHP-3 and AHP-4 represent the first, second, third and fourth generation AHP, respectively). Furthermore, the self-assembly performance of AHP-s in THF solvent was investigated by TEM and SEM. Finally, the encapsulation capacity of the AHP-s for methyl orange (MO) was explored at different concentrations of AHP-s and pH conditions. It was found that AHP-s is capable of accommodating hydrophilic guest MO. Moreover, the higher generation of AHP-s, the stronger encapsulation capacity obtained. And the encapsulation capacity closely associated with the pH of encapsulation system.
Graphical abstract
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4
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Wu G, Wang ZS, Bai QY. Simultaneous Dual Thermoresponsiveness and Fluorescence of Degradable Amphiphilic Diblock Copolymers in Water: Synergy of Supramolecular Interactions and Crystallization. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00633] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gang Wu
- Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials(MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zi-Sheng Wang
- College of Letters & Science, University of California, Santa Barbara, Santa Barbara, California 93111, United States
| | - Qi-Yao Bai
- Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials(MoE), State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, Chengdu 610064, China
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5
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One‐dimensional growth kinetics for formation of cylindrical crystalline micelles of block copolymers. POLYMER CRYSTALLIZATION 2019. [DOI: 10.1002/pcr2.10047] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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6
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Barron H, Opletal G, Tilley R, Barnard AS. Predicting the role of seed morphology in the evolution of anisotropic nanocatalysts. NANOSCALE 2017; 9:1502-1510. [PMID: 28067382 DOI: 10.1039/c6nr06765d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Controlling the structure of nanocrystals is an effective way to tune their properties and improve performance in a wide variety of applications. However, the atomic pathways for achieving this goal are difficult to identify and exercise, due to competing kinetic and thermodynamic influences during formation. In particular, an understanding of how symmetry, and symmetry breaking, determine nanocrystal morphology would significantly advance our ability to produce nanomaterials with prescribed functions. In this study we present results of a detailed computational study into the atomic structure of platinum nanoparticles at early growth stages of formation, as a function of temperature and atomic deposition rates. We investigate the impact of different types of crystalline seeds and characterize the emergent structures via simulated High Resolution Transmission Electron Microscopy (HRTEM) images. We find that the choice of initial seed is an important driver for symmetry breaking, due to a combination of atomic deposition and etching on different seed facets. A mix of low index facets causes the formation of important surface defects, in addition to the absorption/adsorption of single atoms, which can be correlated with different catalytic reactions as the process perpetuates. These findings provide new insights into nanocrystal shape-control mechanisms and suggest new opportunities for future design of this important class of nanomaterials.
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Affiliation(s)
- Hector Barron
- CSIRO, Molecular & Materials Modelling, Data61, Door 34 Goods Shed, Village St, Docklands, Victoria 3008, Australia.
| | - George Opletal
- CSIRO, Molecular & Materials Modelling, Data61, Door 34 Goods Shed, Village St, Docklands, Victoria 3008, Australia.
| | - Richard Tilley
- University of New South Wales, Sydney, 2052, NSW, Australia
| | - Amanda S Barnard
- CSIRO, Molecular & Materials Modelling, Data61, Door 34 Goods Shed, Village St, Docklands, Victoria 3008, Australia.
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7
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Wu G, Chen SC, Wang YZ. Poly(ethylene imine)-Triggered Morphological Change of Anisotropic Micelles from Direct Aqueous Self-Assembly of an Amphiphilic Diblock Copolymer. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Gang Wu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
- School of Energy Science and Engineering; University of Electronic Science and Technology of China; Chengdu 611731 P. R. China
| | - Si-Chong Chen
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
| | - Yu-Zhong Wang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 P. R. China
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8
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Gao L, Kong T, Huo Y. Dual Thermoresponsive and pH-Responsive Poly(vinyl alcohol) Derivatives: Synthesis, Phase Transition Study, and Functional Applications. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01316] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Liang Gao
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | - Tengfei Kong
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | - Yanping Huo
- School
of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
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9
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Yuan W, Chen X. Star-shaped and star-block polymers with a porphyrin core: from LCST–UCST thermoresponsive transition to tunable self-assembly behaviour and fluorescence performance. RSC Adv 2016. [DOI: 10.1039/c5ra21647h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The micelles self-assembled from star-shaped and star-block copolymers present a transition of LCST–UCST thermoresponsive properties through a facile quaternization reaction.
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Affiliation(s)
- Weizhong Yuan
- School of Materials Science and Engineering
- Key Laboratory of Advanced Civil Materials of Ministry of Education
- Tongji University
- People's Republic of China
| | - Xiangnan Chen
- School of Materials Science and Engineering
- Key Laboratory of Advanced Civil Materials of Ministry of Education
- Tongji University
- People's Republic of China
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10
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Wang MJ, Wang H, Chen SC, Chen C, Liu Y. Morphological Control of Anisotropic Self-Assemblies from Alternating Poly(p-dioxanone)-poly(ethylene glycol) Multiblock Copolymer Depending on the Combination Effect of Crystallization and Micellization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:6971-6980. [PMID: 26061590 DOI: 10.1021/acs.langmuir.5b01835] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel and facile method was developed for morphological controlling of self-assemblies prepared by crystallization induced self-assembly of crystalline-coil copolymer depending on the combination effect of crystallization and micellization. The morphological evolution of the self-assemblies of alternating poly(p-dioxanone)-block-poly(ethylene glycol) (PPDO-PEG) multiblock copolymer prepared by different solvent mixing methods in aqueous solution were investigated. "Chrysanthemum"-like and "star anise"-like self-assemblies were obtained at different rates of solvent mixing. The results suggested gradually change in solvent quality (slowly dropping water into DMF solution) leaded to a hierarchical micellization-crystallization process of core-forming PPDO blocks, and flake-like particles were formed at the initial stage of crystallization. Meanwhile, crystallization induced micellization process occurred when solvent quality changed drastically. Shuttle-like particles, which have much smaller size than those of flake-like particles, were formed at the initial stage of crystallization when quickly injecting water into DMF solution of the copolymer. Therefore, owing to the different changing rate of solvent quality, which may result in different combination effect of crystallization and micellization during self-assembly of the copolymer, PPDO-PEG self-assemblies with different hierarchical morphology in nano scale could be obtained.
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Affiliation(s)
- Mei-Jia Wang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Hao Wang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Si-Chong Chen
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Cheng Chen
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Ya Liu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu, 610064, China
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11
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Dang HC, Luo YK, Xu C, Song F, Wang XL, Wang YZ. Contribution of Hemispheric CaCO3 To Improving Crystalline, Physical Properties and Biocompatibility of Poly(p-dioxanone). Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b00796] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hai-Chun Dang
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Yan-Kui Luo
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Chen Xu
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Fei Song
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Xiu-Li Wang
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Yu-Zhong Wang
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
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12
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Wu G, Chen SC, Liu CL, Wang YZ. Direct Aqueous Self-Assembly of an Amphiphilic Diblock Copolymer toward Multistimuli-Responsive Fluorescent Anisotropic Micelles. ACS NANO 2015; 9:4649-4659. [PMID: 25857656 DOI: 10.1021/acsnano.5b01370] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
It is extremely important for emerging applications and still enormously challenging to develop multifunctional stimuli-responsive anisotropic polymeric micelles with integration of potentially targeted therapeutic and diagnostic function. Herein, we report a first example of fluorescent anisotropic micelles (FAMs) with Fe(3+), DTT, H2O2, and thermal responsive fluorescence and morphology. FAMs from direct aqueous self-assembly of amphiphilic diblock copolymer showed reversible "switch off/on" of aqua fluorescent emission and controllable structural change by sequential addition of Fe(3+) and DTT. In addition, the FAMs had reversible dual-thermal responsiveness of fluorescence and morphology. This micelle could serve as a promising candidate for all-in-one application of quantitative detecting, imaging, drug delivery, and targeted release.
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Affiliation(s)
- Gang Wu
- †Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610064, China
- ‡School of Energy Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China
| | - Si-Chong Chen
- †Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Chang-Lei Liu
- †Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yu-Zhong Wang
- †Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, Sichuan 610064, China
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13
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Crystallization induced micellization of poly(p-dioxanone)-block-polyethylene glycol diblock copolymer functionalized with pyrene moiety. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.07.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Liu CL, Wang MJ, Wu G, You J, Chen SC, Liu Y, Wang YZ. Preparation of Core-Shell Nanofibers with Selectively Localized CNTs from Shish Kebab-like Hierarchical Composite Micelles. Macromol Rapid Commun 2014; 35:1450-7. [DOI: 10.1002/marc.201400261] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Revised: 06/11/2014] [Indexed: 12/26/2022]
Affiliation(s)
- Chang-Lei Liu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 PR China
| | - Mei-Jia Wang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 PR China
| | - Gang Wu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 PR China
| | - Jiao You
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 PR China
| | - Si-Chong Chen
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 PR China
| | - Ya Liu
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 PR China
| | - Yu-Zhong Wang
- National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan); State Key Laboratory of Polymer Materials Engineering; College of Chemistry; Sichuan University; Chengdu 610064 PR China
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15
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Hu G, Fan X, Xu B, Zhang D, Hu Z. Facile synthesis and characterization of novel biodegradable amphiphilic block copolymers bearing pendant hydroxyl groups. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:207-13. [PMID: 25175206 DOI: 10.1016/j.msec.2014.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 06/04/2014] [Accepted: 07/03/2014] [Indexed: 10/25/2022]
Abstract
Novel amphiphilic block copolymers bearing pendant hydroxyl groups polylactide-b-poly(3,3-bis(Hydroxymethyl-triazolylmethyl) oxetane)-b-polylactide (PLA-b-PHMTYO-b-PLA) were synthesized via a facile and efficient method. First, the block copolymer intermediates polylactide-b-poly(3,3-Diazidomethyloxetane)-b-polylactide (PLA-b-PBAMO-b-PLA) were synthesized through ring-opening polymerization of lactide using PBAMO as a macroinitiator. Following "Click" reaction of PLA-b-PBAMO-b-PLA with propargyl alcohol provided the targeted amphiphilic block copolymers PLA-b-PHMTYO-b-PLA with pendant hydroxyl groups. The composition and structure of prepared copolymers were characterized by (1)H nuclear magnetic resonance ((1)H NMR) spectroscopy, Fourier transform infrared (FT-IR) and gel permeation chromatography (GPC). The self-assembly behavior of the copolymers in water was investigated by transmission electron microscope (TEM), dynamic light scattering (DLS) and static light scattering (SLS). The results showed that the novel copolymers PLA-b-PHMTYO-b-PLA self-assembled into spherical micelles with diameters ranging from 100 nm to 200 nm in aqueous solution. These copolymers also exhibited low critical micellar concentrations (CMC: 6.9 × 10(-4)mg/mL and 3.9 × 10(-5)mg/mL, respectively). In addition, the in vitro cytotoxicity of these copolymers was determined in the presence of L929 cells. The results showed that the block copolymers PLA-b-PHMTYO-b-PLA exhibited better biocompatibility. Therefore, these well-defined copolymers are expected to find some applications in drug delivery or tissue engineering.
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Affiliation(s)
- Gaicen Hu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Xiaoshan Fan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Bingcan Xu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Delong Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Zhiguo Hu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China.
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16
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Wang L, Li YK, Xu Y, Wang CQ. A facile construction method for pH and oxidation dual-responsive assembly based on ferrocene-modified chitooligosaccharide. REACT FUNCT POLYM 2014. [DOI: 10.1016/j.reactfunctpolym.2013.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Song F, Shi WT, Dong XT, Han X, Wang XL, Chen SC, Wang YZ. Fennel-like nanoaggregates based on polysaccharide derivatives and their application in drug delivery. Colloids Surf B Biointerfaces 2014; 113:501-4. [DOI: 10.1016/j.colsurfb.2013.09.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 09/12/2013] [Accepted: 09/13/2013] [Indexed: 11/16/2022]
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18
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Zhai FY, Huang W, Wu G, Jing XK, Wang MJ, Chen SC, Wang YZ, Chin IJ, Liu Y. Nanofibers with very fine core-shell morphology from anisotropic micelle of amphiphilic crystalline-coil block copolymer. ACS NANO 2013; 7:4892-4901. [PMID: 23651422 DOI: 10.1021/nn401851w] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A novel and facile strategy, combining anisotropic micellization of amphiphilic crystalline-coil copolymer in water and reassembly during single spinneret electrospinning, was developed for preparing nanofibers with very fine core-shell structure. Polyvinyl alcohol (PVA) and polyethylene glycol-block-poly(p-dioxanone) (PEG-b-PPDO) were used as the shell and the crystallizable core layer, respectively. The core-shell structure could be controllably produced by altering concentration of PEG-b-PPDO, and the chain length of the PPDO block. The morphology of the nanofibers was investigated by Transmission Electron Microscope (TEM) and Scanning Electron Microscope (SEM). X-ray rocking curve measurements were performed to investigate the degree of ordered alignment of the PPDO crystalline lamellae in the nanofiber. The results suggested that the morphology of nanoparticles in spinning solution plays very important role in determining the phase separation of nanofibers. The amphiphilic PEG-b-PPDO copolymer self-assembled into star anise nanoaggregates in water solution induced by the crystallization of PPDO blocks. When incorporated with PVA, the interaction between PVA and PEG-b-PPDO caused a morphological transition of the nanoaggregates from star anise to small flake. For flake-like particles, their flat surface is in favor of compact stacking of PPDO crystalline lamellae and interfusion of amorphous PPDO in the core of nanofibers, leading to a relatively ordered alignment of PPDO crystalline lamellae and well-defined core-shell phase separation. However, for star anise-like nanoaggregates, their multibranched morphology may inevitably prohibit the compact interfusion of PPDO phase, resulting in a random microphase separation.
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Affiliation(s)
- Fei-Yu Zhai
- Center for Degradable and Flame-Retardant Polymeric Materials (ERCEPM-MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University, Chengdu 610064, China
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19
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Dong XT, Shi WT, Dang HC, Bao WY, Wang XL, Wang YZ. Thermal, Crystallization Properties, and Micellization Behavior of HEC-g-PPDO Copolymer: Microstructure Parameters Effect. Ind Eng Chem Res 2012. [DOI: 10.1021/ie300873a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xue-Ting Dong
- Center for
Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE), College
of Chemistry, State Key Laboratory of Polymer Materials Engineering,
National Engineering Laboratory of Eco-Friendly Polymeric Materials
(Sichuan), Sichuan University, 29 Wangjiang
Road, Chengdu 610064, China
| | - Wen-Ting Shi
- Center for
Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE), College
of Chemistry, State Key Laboratory of Polymer Materials Engineering,
National Engineering Laboratory of Eco-Friendly Polymeric Materials
(Sichuan), Sichuan University, 29 Wangjiang
Road, Chengdu 610064, China
| | - Hai-Chun Dang
- Center for
Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE), College
of Chemistry, State Key Laboratory of Polymer Materials Engineering,
National Engineering Laboratory of Eco-Friendly Polymeric Materials
(Sichuan), Sichuan University, 29 Wangjiang
Road, Chengdu 610064, China
| | - Wen-Yi Bao
- Center for
Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE), College
of Chemistry, State Key Laboratory of Polymer Materials Engineering,
National Engineering Laboratory of Eco-Friendly Polymeric Materials
(Sichuan), Sichuan University, 29 Wangjiang
Road, Chengdu 610064, China
| | - Xiu-Li Wang
- Center for
Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE), College
of Chemistry, State Key Laboratory of Polymer Materials Engineering,
National Engineering Laboratory of Eco-Friendly Polymeric Materials
(Sichuan), Sichuan University, 29 Wangjiang
Road, Chengdu 610064, China
| | - Yu-Zhong Wang
- Center for
Degradable and Flame-Retardant Polymeric Materials (ERCPM-MoE), College
of Chemistry, State Key Laboratory of Polymer Materials Engineering,
National Engineering Laboratory of Eco-Friendly Polymeric Materials
(Sichuan), Sichuan University, 29 Wangjiang
Road, Chengdu 610064, China
| |
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