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Filipek K, Otulakowski Ł, Jelonek K, Utrata-Wesołek A. Degradable Nanogels Based on Poly[Oligo(Ethylene Glycol) Methacrylate] (POEGMA) Derivatives through Thermo-Induced Aggregation of Polymer Chain and Subsequent Chemical Crosslinking. Polymers (Basel) 2024; 16:1163. [PMID: 38675081 PMCID: PMC11054481 DOI: 10.3390/polym16081163] [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: 03/08/2024] [Revised: 04/17/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Polymer nanogels-considered as nanoscale hydrogel particles-are attractive for biological and biomedical applications due to their unique physicochemical flexibility. However, the aggregation or accumulation of nanoparticles in the body or the occurrence of the body's defense reactions still pose a research challenge. Here, we demonstrate the fabrication of degradable nanogels using thermoresponsive, cytocompatible poly[oligo(ethylene glycol) methacrylate]s-based copolymers (POEGMA). The combination of POEGMA's beneficial properties (switchable affinity to water, nontoxicity, non-immunogenicity) along with the possibility of nanogel degradation constitute an important approach from a biological point of view. The copolymers of oligo(ethylene glycol) methacrylates were partially modified with short segments of degradable oligo(lactic acid) (OLA) terminated with the acrylate group. Under the influence of temperature, copolymers formed self-assembled nanoparticles, so-called mesoglobules, with sizes of 140-1000 nm. The thermoresponsive behavior of the obtained copolymers and the nanostructure sizes depended on the heating rate and the presence of salts in the aqueous media. The obtained mesoglobules were stabilized by chemical crosslinking via thiol-acrylate Michael addition, leading to nanogels that degraded over time in water, as indicated by the DLS, cryo-TEM, and AFM measurements. Combining these findings with the lack of toxicity of the obtained systems towards human fibroblasts indicates their application potential.
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Affiliation(s)
| | | | | | - Alicja Utrata-Wesołek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
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2
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Xu S, Xu W, Zheng Y, Yu C, Wang B, Pan P. Structural Organizations of a Mesogen-Terminated Semicrystalline Polymer: Chain Termini Ordering between Polymer Crystal Lamellae. J Phys Chem Lett 2022; 13:11703-11709. [PMID: 36512490 DOI: 10.1021/acs.jpclett.2c03271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In polymer crystallization, the chain end groups are generally excluded into the nanoscaled amorphous regions confined between crystal lamellae. Understanding the structural characteristic and evolution of interlamellar end groups is of great importance to control the macroscopic properties of polymers. However, the structural evolution of those confined end groups and related physical evidence remain unclear. Herein, we synthesized the end-functionalized poly(lactic acid)s with a self-assemblable mesogenic termini (4-hexyloxy-4'-cyanobiphenyl) and investigated the structural evolution of mesogenic termini between crystal lamellae. Intriguingly, the mesogenic termini can organize into an ordered layer structure between polymer crystal lamellae; such a process strongly depends upon the interlamellar spacing. A higher crystallization temperature (Tc) of the polymer allows for a larger interlamellar region, favoring the formation of an ordered mesogenic layer. However, a lower Tc results in a restricted interlamellar region, in which the end groups are strongly confined without sufficient mobility to undergo structural ordering. This study provides evidence for the structural ordering of chain termini confined between polymer crystal lamellae.
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Affiliation(s)
- Shanshan Xu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310027, People's Republic of China
| | - Wenqing Xu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310027, People's Republic of China
| | - Ying Zheng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310027, People's Republic of China
- Institute of Zhejiang University─Quzhou, 99 Zheda Road, Quzhou, Zhejiang 324000, People's Republic of China
| | - Chengtao Yu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310027, People's Republic of China
- Institute of Zhejiang University─Quzhou, 99 Zheda Road, Quzhou, Zhejiang 324000, People's Republic of China
| | - Bao Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310027, People's Republic of China
- Institute of Zhejiang University─Quzhou, 99 Zheda Road, Quzhou, Zhejiang 324000, People's Republic of China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310027, People's Republic of China
- Institute of Zhejiang University─Quzhou, 99 Zheda Road, Quzhou, Zhejiang 324000, People's Republic of China
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3
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Chen Y, Yang W, Liu J, Wang Y, Luo Y. The characteristics and mechanism of hydrogen bonding assembly in linear polyurethane with multiple pendant 2‐ureido‐4[1
H
]‐pyrimidone units. J Appl Polym Sci 2022. [DOI: 10.1002/app.53520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yimei Chen
- Lab for Smart & Bioinspired Materials, College of Bioengineering Chongqing University Chongqing China
- Key Lab of Biorheological Science and Technology Ministry of Education Chongqing China
| | - Wei Yang
- Lab for Smart & Bioinspired Materials, College of Bioengineering Chongqing University Chongqing China
- Key Lab of Biorheological Science and Technology Ministry of Education Chongqing China
| | - Juan Liu
- Lab for Smart & Bioinspired Materials, College of Bioengineering Chongqing University Chongqing China
- Key Lab of Biorheological Science and Technology Ministry of Education Chongqing China
| | - Yuanliang Wang
- Lab for Smart & Bioinspired Materials, College of Bioengineering Chongqing University Chongqing China
- Key Lab of Biorheological Science and Technology Ministry of Education Chongqing China
| | - Yanfeng Luo
- Lab for Smart & Bioinspired Materials, College of Bioengineering Chongqing University Chongqing China
- Key Lab of Biorheological Science and Technology Ministry of Education Chongqing China
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4
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Kost B, Basko M, Bednarek M, Socka M, Kopka B, Łapienis G, Biela T, Kubisa P, Brzeziński M. The influence of the functional end groups on the properties of polylactide-based materials. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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He Y, Liu D, Wang J, Pan P, Hu W. Tammann Analysis of the Molecular Weight Selection of Polymorphic Crystal Nucleation in Symmetric Racemic Poly(lactic acid) Blends. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00457] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yucheng He
- State Key Laboratory of Coordinate Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Dan Liu
- State Key Laboratory of Coordinate Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Jiping Wang
- State Key Laboratory of Coordinate Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Biological and Chemical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wenbing Hu
- State Key Laboratory of Coordinate Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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6
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Stereocomplex formation and hierarchical structural changes during heating of supramolecular gels obtained by polylactide racemic blends. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Xu W, Zheng Y, Pan P. Crystallization‐driven self‐assembly of semicrystalline block copolymers and end‐functionalized polymers: A minireview. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Wenqing Xu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
| | - Ying Zheng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
- Institute of Zhejiang University—Quzhou Quzhou China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering Zhejiang University Hangzhou China
- Institute of Zhejiang University—Quzhou Quzhou China
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8
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Sun C, Zheng Y, Xu S, Ni L, Li X, Shan G, Bao Y, Pan P. Role of Chain Entanglements in the Stereocomplex Crystallization between Poly(lactic acid) Enantiomers. ACS Macro Lett 2021; 10:1023-1028. [PMID: 35549120 DOI: 10.1021/acsmacrolett.1c00394] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Stereocomplex (SC) crystallization between polymer enantiomers has opened a promising avenue for preparing high-performance materials. However, high-crystallinity SCs are difficult to achieve for high-molecular-weight (HMW) enantiomeric blends of chiral polymers [e.g., poly(lactic acid)]. Despite extensive studies, why HMW enantiomeric blends have difficulty in SC crystallization has not been clarified. Herein, we chose the HMW poly(l-lactic acid)/poly(d-lactic acid) (PLLA/PDLA) 1/1 blend as the model system and demonstrated the crucial role of chain entanglement in regulating SC crystallization. PLLA/PDLA blends with various entanglement degrees were prepared by freeze-drying. We observed that disentangling promoted not only the crystallization rate but also the crystallinity of SCs in both the nonisothermal and isothermal processes. The less-entangled samples crystallized exclusively as the high-crystallinity SCs at different temperatures, in contrast to the predominant homocrystallization that occurred in the common entangled samples. This study provides deep insight into the SC crystallization mechanism of polymers and paves the way for future research attempting to prepare SC materials.
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Affiliation(s)
- Chenxuan Sun
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Ying Zheng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Shanshan Xu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Lingling Ni
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Xing Li
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
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9
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Brzeziński M, Kost B, Gonciarz W, Krupa A, Socka M, Rogala M. Nanocarriers based on block copolymers of l-proline and lactide: The effect of core crosslinking versus its pH-sensitivity on their cellular uptake. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Chanthaset N, Ajiro H. Synthetic Biodegradable Polymers with Chain End Modification: Polylactide, Poly(butylene succinate), and Poly(hydroxyalkanoate). CHEM LETT 2021. [DOI: 10.1246/cl.200859] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nalinthip Chanthaset
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Hiroharu Ajiro
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
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11
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Xu W, Li X, Zheng Y, Yuan W, Zhou J, Yu C, Bao Y, Shan G, Pan P. Hierarchical ordering and multilayer structure of poly(ε-caprolactone) end-functionalized by a liquid crystalline unit: role of polymer crystallization. Polym Chem 2021. [DOI: 10.1039/d1py00702e] [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
This study elucidates the role of polymer crystallization in the structural organization of LC end-functionalized polymers and offers a potential method to tune the hierarchical structures of end-functionalized polymers.
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Affiliation(s)
- Wenqing Xu
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xing Li
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Ying Zheng
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Wenhua Yuan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Jian Zhou
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Chengtao Yu
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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12
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Thompson CB, Korley LTJ. 100th Anniversary of Macromolecular Science Viewpoint: Engineering Supramolecular Materials for Responsive Applications-Design and Functionality. ACS Macro Lett 2020; 9:1198-1216. [PMID: 35638621 DOI: 10.1021/acsmacrolett.0c00418] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Supramolecular polymers allow access to dynamic materials, where noncovalent interactions can be used to offer both enhanced material toughness and stimuli-responsiveness. The versatility of self-assembly has enabled these supramolecular motifs to be incorporated into a wide array of glassy and elastomeric materials; moreover, the interaction of these noncovalent motifs with their environment has shown to be a convenient platform for controlling material properties. In this Viewpoint, supramolecular polymers are examined through their self-assembly chemistries, approaches that can be used to control their self-assembly (e.g., covalent cross-links, nanofillers, etc.), and how the strategic application of supramolecular polymers can be used as a platform for designing the next generation of smart materials. This Viewpoint provides an overview of the aspects that have garnered interest in supramolecular polymer chemistry, while also highlighting challenges faced and innovations developed by researchers in the field.
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Affiliation(s)
- Chase B. Thompson
- Department of Materials Science and Engineering, University of Delaware, 127 The Green, Newark, Delaware 19716, United States
| | - LaShanda T. J. Korley
- Department of Materials Science and Engineering, University of Delaware, 127 The Green, Newark, Delaware 19716, United States
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
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13
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Xie Q, Guo G, Lu W, Sun C, Zhou J, Zheng Y, Shan G, Bao Y, Pan P. Polymorphic homocrystallization and phase behavior of high-molecular-weight Poly(L-lactic acid)/poly(D-lactic acid) racemic mixture with intentionally enhanced stereocomplexation ability via miscible blending. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122597] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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14
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Socka M, Sitko M, Boncel S, Kost B, Chrobok A, Brzeziński M. Nanobiocatalyst from lipase non-covalently immobilized on multiwalled carbon nanotubes for copolymerization of ε-caprolactone and trimethylene carbonate. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.109000] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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15
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Brzeziński M, Socka M, Kost B. Microfluidics for producing polylactide nanoparticles and microparticles and their drug delivery application. POLYM INT 2019. [DOI: 10.1002/pi.5753] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Marek Brzeziński
- Polymer Department, Centre of Molecular and Macromolecular StudiesPolish Academy of Sciences Łódź Poland
| | - Marta Socka
- Polymer Department, Centre of Molecular and Macromolecular StudiesPolish Academy of Sciences Łódź Poland
| | - Bartłomiej Kost
- Polymer Department, Centre of Molecular and Macromolecular StudiesPolish Academy of Sciences Łódź Poland
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16
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Brzeziński M, Wedepohl S, Kost B, Calderón M. Nanoparticles from supramolecular polylactides overcome drug resistance of cancer cells. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.08.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Danko M, Hrdlovič P, Brzezinski M, Duda A, Biela T. Real-time monitoring of stereocomplex formation of poly(l-lactide) and poly(d-lactide) decorated with a pyrene derivative as a fluorescence probe. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.09.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Xie Y, Lan XR, Bao RY, Lei Y, Cao ZQ, Yang MB, Yang W, Wang YB. High-performance porous polylactide stereocomplex crystallite scaffolds prepared by solution blending and salt leaching. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:602-609. [DOI: 10.1016/j.msec.2018.05.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 04/13/2018] [Accepted: 05/05/2018] [Indexed: 12/19/2022]
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19
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Gorbachuk VV, Padnya PL, Stoikov II. Synthesis of Macrocyclic Stereoisomers Substituted with Oligolactide Fragments. RUSS J GEN CHEM+ 2018. [DOI: 10.1134/s1070363218090128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Yu B, Meng L, Fu S, Zhao Z, Liu Y, Wang K, Fu Q. Morphology and internal structure control over PLA microspheres by compounding PLLA and PDLA and effects on drug release behavior. Colloids Surf B Biointerfaces 2018; 172:105-112. [PMID: 30142528 DOI: 10.1016/j.colsurfb.2018.08.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/10/2018] [Accepted: 08/17/2018] [Indexed: 12/15/2022]
Abstract
The applications of Polylactide (PLA) microspheres in biomedical areas are greatly determined by the size, morphology and internal structure. Taking advantage of the formation of stereocomplex (SC) crystallites between poly(L-lactide) (PLLA) and poly(D-lactide) (PDLA), we propose a facile strategy to prepare PLA microspheres with tunable morphology and crystalline structure by compounding PLLA and PDLA. With increasing PDLA content, the crystallinity of SC-PLA rose gradually until the ratio of PLLA and PDLA reached 1:1 and then fell. Correspondingly, the morphology of the microspheres were varied (smooth, porous, golf-ball like, guava like) and higher crystallinity of SC-PLA would lead to a more coarse and porous structure. Finally, three typical kinds of Rifampicin-loaded microspheres with different ratio of PLLA and PDLA (7:3, 3:7, 10:0, sorted by porosity from high to low) were prepared and the release behavior was compared. At 30 h, the cumulative release of 7:3, 3:7 and 10:0 microspheres were 32.6%, 17.8% and 6.0% respectively, indicating that the release profiles were generally determined by the porosity of the microspheres. Our findings not only provide a new strategy to prepare PLA microspheres with controllable morphology but offer additional possibilities for the applications of SC-PLA products in biomedical area.
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Affiliation(s)
- Bowen Yu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Lu Meng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Sirui Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhiyu Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yuhang Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Ke Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Qiang Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.
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21
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Supramolecular aggregates of linear and star-shaped polylactides with different number of hydroxyl or carboxyl end-groups. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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22
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Socka M, Brzezinski M, Michalski A, Kacprzak A, Makowski T, Duda A. Self-Assembly of Triblock Copolymers from Cyclic Esters as a Tool for Tuning Their Particle Morphology. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3701-3710. [PMID: 29498863 DOI: 10.1021/acs.langmuir.8b00440] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper presents the effect of end groups, chain structure, and stereocomplexation on the microparticle and nanoparticle morphology and thermal properties of the supramolecular triblock copolyesters. Therefore, the series of the triblock copolymers composed of l,l- and d,d-lactide, trimethylene carbonate (TMC), and ε-caprolactone (CL) with isopropyl ( iPr) or 2-ureido-4-[1 H]-pyrimidinone (UPy) end groups at both chain ends were synthesized. In addition, these copolymers were intermoleculary stereocomplexed by polylactide (PLA) blocks with an opposite configuration of repeating units to promote their self-assembly in various organic solvents. The combination of two noncovalent interactions of the end groups and PLA enantiomeric chains leads to stronger interactions between macromolecules and allows for alteration of their segmental mobility. The simple tuning of the copolymer microstructure and functionality induced the self-assembly of macromolecules at liquid/liquid interfaces, which consequently leads to their phase separation in the form of particles with diameters ranging from 0.1 μm to 10 μm. This control is essential for their potential applications in the biomedical field, where biocompatible and well-defined microparticles and nanoparticles are highly desirable.
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Affiliation(s)
- M Socka
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - M Brzezinski
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - A Michalski
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - A Kacprzak
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - T Makowski
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - A Duda
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
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23
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Largely improved mechanical properties of a biodegradable polyurethane elastomer via polylactide stereocomplexation. POLYMER 2018. [DOI: 10.1016/j.polymer.2017.12.067] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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24
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KAN K, AJIRO H, AKASHI M. Chain End Modification of Polylactide Biomaterials and Investigation of Their Polymer-Polymer Interaction. KOBUNSHI RONBUNSHU 2018. [DOI: 10.1295/koron.2017-0059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kai KAN
- Institute for Research Initiatives, Division for Research Strategy, Nara Institute of Science and Technology
- Graduate School of Materials Science, Nara Institute of Science and Technology
| | - Hiroharu AJIRO
- Institute for Research Initiatives, Division for Research Strategy, Nara Institute of Science and Technology
- Graduate School of Materials Science, Nara Institute of Science and Technology
- JST, PRESTO
| | - Mitsuru AKASHI
- Graduate School of Frontier Biosciences, Osaka University
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25
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Bao J, Fan H, Xue X, Xie Q, Pan P. Temperature-dependent crystalline structure and phase transition of poly(butylene adipate) end-functionalized by multiple hydrogen-bonding groups. Phys Chem Chem Phys 2018; 20:26479-26488. [DOI: 10.1039/c8cp05066j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The crystallization kinetics, crystalline structure and phase transition of UPy-functionalized poly(butylene adipate) were investigated. UPy functionalization facilitated the formation of α crystals.
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Affiliation(s)
- Jianna Bao
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology
- Ministry of Education
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Huabo Fan
- The Institute of Oil and Gas Technology of Changqing Oilfield Company
- Xi’an 710018
- China
| | - Xiaojia Xue
- The Institute of Oil and Gas Technology of Changqing Oilfield Company
- Xi’an 710018
- China
| | - Qing Xie
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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26
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Shi X, Jing Z, Zhang G, Xu Y, Yao Y. Fully bio-based poly(ɛ-capolactone)/poly(lactide) alternating multiblock supramolecular polymers: Synthesis, crystallization behavior, and properties. J Appl Polym Sci 2017. [DOI: 10.1002/app.45575] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xuetao Shi
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
| | - Zhanxin Jing
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
| | - Guangcheng Zhang
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
| | - Yan Xu
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
| | - Yao Yao
- MOE Key Lab of Applied Physics and Chemistry in Space; School of Science, Northwestern Polytechnical University; Xi'an 710072 China
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27
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Bao J, Xue X, Li K, Chang X, Xie Q, Yu C, Pan P. Competing Stereocomplexation and Homocrystallization of Poly(l-lactic acid)/Poly(d-lactic acid) Racemic Mixture: Effects of Miscible Blending with Other Polymers. J Phys Chem B 2017. [DOI: 10.1021/acs.jpcb.7b03287] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianna Bao
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Xiaojia Xue
- The Institute of Oil and Gas Technology of Changqing Oilfield Company, Xi’an 710018, China
| | - Kai Li
- The Institute of Oil and Gas Technology of Changqing Oilfield Company, Xi’an 710018, China
| | - Xiaohua Chang
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Qing Xie
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Chengtao Yu
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Pengju Pan
- State
Key Laboratory of Chemical Engineering, College of Chemical and Biological
Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
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28
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Brzeziński M. Hollow Microcapsules with Enhanced Stability via Stereocomplex Assemblies. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Marek Brzeziński
- Freie Universität Berlin; Institute of Chemistry and Biochemistry; Takustr. 3 14195 Berlin Germany
- Helmholtz-Zentrum Berlin; EM-ISFM Soft Matter and Functional Materials; Hahn-Meitner-Platz 1 14109 Berlin Germany
- Department of Polymer Chemistry; Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 122 90-363 Lodz Poland
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29
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Brzeziński M, Kacprzak A, Calderón M, Seiffert S. Metallo-Polymer Chain Extension Controls the Morphology and Release Kinetics of Microparticles Composed of Terpyridine-Capped Polylactides and their Stereocomplexes. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600790] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Marek Brzeziński
- Polish Academy of Sciences; Department of Polymer Chemistry; Centre of Molecular and Macromolecular Studies; Sienkiewicza, 112 90-363 Lodz Poland
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Takustr. 3 D-14195 Berlin Germany
| | - Anna Kacprzak
- Polish Academy of Sciences; Department of Polymer Chemistry; Centre of Molecular and Macromolecular Studies; Sienkiewicza, 112 90-363 Lodz Poland
| | - Marcelo Calderón
- Institute of Chemistry and Biochemistry; Freie Universität Berlin; Takustr. 3 D-14195 Berlin Germany
| | - Sebastian Seiffert
- Institute of Physical Chemistry; Johannes Gutenberg-Universität Mainz; Duesbergweg 10-14 D-55128 Mainz Germany
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30
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Cheng CC, Chuang WT, Lee DJ, Xin Z, Chiu CW. Supramolecular Polymer Network-Mediated Self-Assembly of Semicrystalline Polymers with Excellent Crystalline Performance. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600702] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 12/07/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Chih-Chia Cheng
- Graduate Institute of Applied Science and Technology; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Wei-Tsung Chuang
- National Synchrotron Radiation Research Center; Hsinchu 30076 Taiwan
| | - Duu-Jong Lee
- Department of Chemical Engineering; National Taiwan University; Taipei 10617 Taiwan
- Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
- R&D Center for Membrane Technology; Chung Yuan Christian University; Chungli Taoyuan 32043 Taiwan
| | - Zhong Xin
- State Key Laboratory of Chemical Engineering; School of Chemical Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Chih-Wei Chiu
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
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31
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Shao J, Guo Y, Ye S, Xie B, Xu Y, Hou H. The morphology and growth of PLA stereocomplex in PLLA/PDLA blends with low molecular weights. POLYMER SCIENCE SERIES A 2017. [DOI: 10.1134/s0965545x1701014x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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32
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Kan K, Akashi M, Ajiro H. Polylactides Bearing Vanillin at Chain End Provided Dual Dynamic Interactions: Stereocomplex Formation and Nanostructure Control. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600395] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kai Kan
- Graduate School of Materials Science; Nara Institute of Science and Technology; 8916-5 Takayama-cho Ikoma Nara 630-0192
- Institute for Research Initiatives; Division for Research Strategy; Nara Institute of Science and Technology; 8916-5, Takayama-cho Ikoma Nara 630-0192 Japan
| | - Mitsuru Akashi
- Graduate School of Frontier Biosciences; Osaka University; 2-1 Yamada-oka Suita 565-0871 Japan
| | - Hiroharu Ajiro
- Graduate School of Materials Science; Nara Institute of Science and Technology; 8916-5 Takayama-cho Ikoma Nara 630-0192
- Institute for Research Initiatives; Division for Research Strategy; Nara Institute of Science and Technology; 8916-5, Takayama-cho Ikoma Nara 630-0192 Japan
- JST PRESTO; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
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33
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Yang S, Zhong GJ, Xu JZ, Li ZM. Preferential formation of stereocomplex in high-molecular-weight polylactic acid racemic blend induced by carbon nanotubes. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.10.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Florczak M, Michalski A, Kacprzak A, Brzeziński M, Biedroń T, Pająk A, Kubisa P, Biela T. MALDI-TOF analysis of lactide oligomers with functional end groups. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Michalski A, Makowski T, Biedroń T, Brzeziński M, Biela T. Controlling polylactide stereocomplex (sc-PLA) self-assembly: From microspheres to nanoparticles. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.03.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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36
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Ajiro H, Ito S, Kan K, Akashi M. Catechin-Modified Polylactide Stereocomplex at Chain End Improved Antibiobacterial Property. Macromol Biosci 2016; 16:694-704. [PMID: 26789009 DOI: 10.1002/mabi.201500398] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 11/18/2015] [Indexed: 12/31/2022]
Abstract
Using different type of initiators, the antibacterial moieties are introduced at the chain end of poly(L,L-lactide) (PLLA) and poly(D,D-lactide) (PDLA), and the thermal properties are simultaneously improved using the stereocomplex approach. The physical interaction of polymers and antibacterial compounds is investigated. The double bonds at the chain end are utilized for the interaction of silver ion; however, the silver ions are not detected after stereocomplexation of PLLA and PDLA. On the other hand, catechin (CT) is selected as an initiator precursor of lactide polymerization, protecting the phenolic hydroxyl groups. The linear PLLA and PDLA are obtained by the initiator, resulting in CT conjugated PLAs at the chain end groups after deprotection of phenolic hydroxyl groups. The antibacterial properties are determined by proliferation tests of staphylococcus aureus. The results suggest that the antibacterial properties of CT modified PLAs are derived from the original CT parts.
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Affiliation(s)
- Hiroharu Ajiro
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan.,Institute for Research Initiatives, Division for Research Strategy, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, 630-0192, Japan.,JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan.,Department of Applied Chemistry, Osaka University, 2-1, Yamada-oka, Suita, 565-0871, Japan.,The Center for Advanced Medical Engineering and Informatics, Osaka University, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Shogo Ito
- Department of Applied Chemistry, Osaka University, 2-1, Yamada-oka, Suita, 565-0871, Japan
| | - Kai Kan
- Institute for Research Initiatives, Division for Research Strategy, Nara Institute of Science and Technology, 8916-5, Takayama, Ikoma, Nara, 630-0192, Japan
| | - Mitsuru Akashi
- Department of Applied Chemistry, Osaka University, 2-1, Yamada-oka, Suita, 565-0871, Japan.,The Center for Advanced Medical Engineering and Informatics, Osaka University, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan.,Graduate School of Frontier Biosciences, Osaka University, 2-1 Yamada-oka, Suita, 565-0871, Japan
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37
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Wen HW, Yang PC. Photophysical and photovoltaic properties of truxene-functionalized conjugated polymer–fullerene supramolecular complexes. RSC Adv 2016. [DOI: 10.1039/c6ra09045a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
We report the photophysical and photovoltaic properties of two truxene-functionalized conjugated copolymers (P1 and P2) containing various 2,1,3-benzothiadiazole segments synthesized through Suzuki and Heck coupling reactions, respectively.
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Affiliation(s)
- Hua-Wen Wen
- Department of Chemical Engineering and Materials Science
- Yuan Ze University
- Taoyuan City 32003
- Taiwan
| | - Po-Chih Yang
- Department of Chemical Engineering and Materials Science
- Yuan Ze University
- Taoyuan City 32003
- Taiwan
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38
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Bao J, Chang X, Shan G, Bao Y, Pan P. Synthesis of end-functionalized hydrogen-bonding poly(lactic acid)s and preferential stereocomplex crystallization of their enantiomeric blends. Polym Chem 2016. [DOI: 10.1039/c6py00976j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel UPy-functionalized alcohol was synthesized and used to initiate the solvent-free ROP of lactide to attain UPy-functionalized PLLA and PDLA. The crystallization rate and stereocomplexation ability of UPy-functionalized PLLA/PDLA blends were promoted.
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Affiliation(s)
- Jianna Bao
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaohua Chang
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- China
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39
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Yang PC, Wen HW, Huang CW, Zhu YN. Synthesis and chemosensory properties of two-arm truxene-functionalized conjugated polyfluorene containing terpyridine moiety. RSC Adv 2016. [DOI: 10.1039/c6ra15965f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report the responsive fluorescence chemosensory phenomena of a truxene-functionalized conjugated polymer (P1) with pendant terminal terpyridine (tpy) groups as receptors for metal ions synthesized via a Suzuki polymerization reaction.
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Affiliation(s)
- Po-Chih Yang
- Department of Chemical Engineering and Materials Science
- Yuan Ze University
- Taoyuan City 32003
- Taiwan
| | - Hua-Wen Wen
- Department of Chemical Engineering and Materials Science
- Yuan Ze University
- Taoyuan City 32003
- Taiwan
| | - Chih-Wei Huang
- Department of Chemical Engineering and Materials Science
- Yuan Ze University
- Taoyuan City 32003
- Taiwan
| | - Yi-Ning Zhu
- Department of Chemical Engineering and Materials Science
- Yuan Ze University
- Taoyuan City 32003
- Taiwan
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40
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Chang R, Shan G, Bao Y, Pan P. Enhancement of Crystallizability and Control of Mechanical and Shape-Memory Properties for Amorphous Enantiopure Supramolecular Copolymers via Stereocomplexation. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01986] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ruoxing Chang
- State Key
Laboratory of Chemical
Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Guorong Shan
- State Key
Laboratory of Chemical
Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Yongzhong Bao
- State Key
Laboratory of Chemical
Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Pengju Pan
- State Key
Laboratory of Chemical
Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
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41
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Brzeziński M, Biela T. Micro- and nanostructures of polylactide stereocomplexes and their biomedical applications. POLYM INT 2015. [DOI: 10.1002/pi.4961] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Marek Brzeziński
- Department of Polymer Chemistry Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
| | - Tadeusz Biela
- Department of Polymer Chemistry Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112 90-363 Lodz Poland
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