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Kobayashi A, Terao K. Highly branched thermoresponsive polysaccharide derivative in water. Partly substituted highly branched cyclic dextrin ethylcarbamate. Carbohydr Polym 2024; 343:122473. [PMID: 39174098 DOI: 10.1016/j.carbpol.2024.122473] [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: 05/09/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 08/24/2024]
Abstract
A thermoresponsive highly branched polysaccharide derivative was revealed from commercially available highly branched cyclic dextrin (HBCD), originally synthesized from amylopectin. Eight samples of partially substituted ethyl carbamate derivatives of HBCD (HEC) were prepared with a degree of substitution DS ranging from 0.27 to 1.46. Three samples with DS = 0.88, 1.05, and 1.22 showed LCST type phase separation in water. The intrinsic viscosity and form factor in water were typical of the hyperbranched structure. The intermolecular interactions between HEC and iodine or 1-anilinonaphthalene-8-sulfonic acid (ANS) were appreciably different from those of the linear analog (AEC), suggesting that the locally bent helical conformation of highly branched HEC chains has a different interaction with small molecules. The phase diagram of HEC-water systems was accidentally similar to that of the linear chain with the same molar mass and DS, although the one phase region of the branched polymer chain-poor solvent system is usually wider than that of the corresponding linear chain. This is likely due to the lower hydration nature of the polymer segment of HEC chains than that of the corresponding linear chain.
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Affiliation(s)
- Akihito Kobayashi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Ken Terao
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
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Mizuguchi M, Umeda K, Mizumoto H, Terao K. Solution characterization of a hyperbranched polysaccharide carbamate derivative and specific phase separation behavior due to chain branching. SOFT MATTER 2023; 19:7781-7786. [PMID: 37791582 DOI: 10.1039/d3sm01074k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
A hyperbranched polymer consisting of rigid helical part chains was prepared as highly branched cyclic dextrin tris(phenylcarbamate) (HTPC) with the weight-average molar masses of 880 and 590 kg mol-1. Small-angle X-ray scattering (SAXS) measurement and viscometry were performed on the samples in good and poor solvents to determine the dimensional and hydrodynamic properties in solution. The HTPC molecule has a much more compact conformation than the linear chain with the same molar mass as expected for the hyperbranched architecture. While the corresponding linear polymer is soluble in methyl acetate (MEA) over a wide temperature range, HTPC is only soluble in the solvent at low temperatures. A typical LCST-type phase diagram was observed for the HTPC-MEA system, indicating that the interactions between the polymer segment of HTPC and the MEA molecules are substantially different from those of the linear chains. This is most likely due to the bending helical chains near the branching point of HTPC having different interactions with solvent molecules.
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Affiliation(s)
- Madoka Mizuguchi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
| | - Keisuke Umeda
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
| | - Hisato Mizumoto
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
| | - Ken Terao
- Department of Macromolecular Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
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Aliakseyeu A, Hlushko R, Sukhishvili SA. Nonionic star polymers with upper critical solution temperature in aqueous solutions. Polym Chem 2022. [DOI: 10.1039/d2py00216g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Novel UCST star poly(2-ureido methacrylates) synthesized via the ARGET ATRP technique showed enhanced trapping abilities of model drug molecules.
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Affiliation(s)
- Aliaksei Aliakseyeu
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, USA
| | - Raman Hlushko
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, USA
| | - Svetlana A. Sukhishvili
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, USA
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Lee CH, Yang HE, Bae YC, Oh JS. Phase equilibria and the surface tension of polypropylene polyol series in water/methanol mixtures: A consideration of structural effects. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.05.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Catrouillet S, Bouteiller L, Nicol E, Nicolai T, Pensec S, Jacquette B, Le Bohec M, Colombani O. Self-Assembly and Critical Solubility Temperature of Supramolecular Polystyrene Bottle-Brushes in Cyclohexane. Macromolecules 2015. [DOI: 10.1021/ma5024022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sylvain Catrouillet
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Laurent Bouteiller
- UMR
8232, IPCM, Chimie des Polymères, Sorbonne Université, UPMC Université Paris 06, F-75005 Paris, France
- UMR
8232, IPCM, Chimie des Polymères, CNRS, 75005 Paris, France
| | - Erwan Nicol
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Taco Nicolai
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Sandrine Pensec
- UMR
8232, IPCM, Chimie des Polymères, Sorbonne Université, UPMC Université Paris 06, F-75005 Paris, France
- UMR
8232, IPCM, Chimie des Polymères, CNRS, 75005 Paris, France
| | - Boris Jacquette
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Maël Le Bohec
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
| | - Olivier Colombani
- IMMM−UMR
CNRS 6283, LUNAM Université, Université du Maine, av. O. Messiaen, 72085 Le Mans Cedex 9, France
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Wu Y, Newkirk MS, Dudek ST, Williams K, Krukonis V, McHugh MA. Architectural Effects on the Solution Behavior of Linear and Star Polymers in Propane at High Pressures. Ind Eng Chem Res 2014. [DOI: 10.1021/ie5011417] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yue Wu
- Department
of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Matthew S. Newkirk
- Department
of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Sean T. Dudek
- Department
of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Kara Williams
- Phasex Corporation, Lawrence, Massachusetts 01843, United States
| | - Val Krukonis
- Phasex Corporation, Lawrence, Massachusetts 01843, United States
| | - Mark A. McHugh
- Department
of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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Tasaka Y, Okumoto M, Nakamura Y, Norisuye T. Light Scattering and Phase Separation Studies on Cyclohexane Solutions of Six-Arm Star Polystyrene†. Polym J 2008. [DOI: 10.1295/polymj.pj2008017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Shmakov SL. Communication to the editor. Comments on the paper ‘combinatory entropy in complex polymer solutions’ by Susumu Saeki, polymer, 2000;41:8331. POLYMER 2005. [DOI: 10.1016/j.polymer.2005.03.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Alessi ML, Bittner KC, Greer SC. Eight-arm star polystyrene in methylcyclohexane: Cloud-point curves, critical lines, and coexisting densities and viscosities. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/polb.10718] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Shmakov SL. Phase equilibrium in solutions of star-shaped macromolecules: an improved Okada–Numasawa model. POLYMER 2002. [DOI: 10.1016/s0032-3861(01)00687-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Numasawa N, Okada M. Coexistence Curve of a Star-Shaped Polymer Solution. Comparison with the Hybrid Theory. Polym J 1999. [DOI: 10.1295/polymj.31.99] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Terao K, Okumoto M, Nakamura Y, Norisuye T, Teramoto A. Light-Scattering and Phase-Separation Studies on Cyclohexane Solutions of Four-Arm Star Polystyrene. Macromolecules 1998. [DOI: 10.1021/ma980839n] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ken Terao
- Department of Macromolecular Science, Osaka University, Machikaneyama-cho 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Mitsuhiro Okumoto
- Department of Macromolecular Science, Osaka University, Machikaneyama-cho 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Yo Nakamura
- Department of Macromolecular Science, Osaka University, Machikaneyama-cho 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Takashi Norisuye
- Department of Macromolecular Science, Osaka University, Machikaneyama-cho 1-1, Toyonaka, Osaka 560-0043, Japan
| | - Akio Teramoto
- Department of Macromolecular Science, Osaka University, Machikaneyama-cho 1-1, Toyonaka, Osaka 560-0043, Japan
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