奈良先端科学技術大学院大学 先端科学技術研究科　物質創成科学領域 ナノ高分子材料研究室

2022年5月26日　更新
(※研究室設置後の分)
以前の研究業績(1999-2014)はこちら

2022

1. Natjaya Ekapakul, Chomdao Sinthuvanich, Hiroharu Ajiro, Chantiga Choochottiros*,
   “Bioactivity of Star-shaped Polycaprolactone/Chitosan Composite Hydrogels for Novel Biomaterials”,
   Int. J. Biol. Macromol. Accepted on 20th May, 2022.
2. Lee Yae Tan, Nalinthip Chanthaset*, Hiroharu Ajiro*,
   “Surface Coating and Characteristics of Ester-free Poly(trimethylene carbonate) Bearing an Aromatic Urea Moiety for Biomaterials Use”,
   Mater. Adv. accepted on 3rd May 2022.
3. Daisuke Aoki,　Francisco Lossada, Daniel Hoenders, Hiroharu Ajiro*, Andreas Walther*,
   “Efficient softening and toughening strategies of cellulose nanofibril nanocomposites using comb polyurethane”,
   Biomacromolecules 2022, 23, 1693-1702.
4. Rikyu Miyake, Akari Maehara, Nalinthip Chanthaset, Hiroharu Ajiro*,
   “Thermal property control by copolymerization of trimethylene carbonate and its derivative bearing triphenylmethyl group”,
   ChemistrySelect 2022, 7, e202104326.
5. Malcolm Kelland*, Erik Dirdal, Radhakanta Ghosh, Hiroharu Ajiro,
   “5-Methyl-3-vinyl-2-oxazolidinone (VMOX) – investigations of a new monomer for kinetic hydrate inhibitor polymers”,
   Energ. Fuel, 2022, 36, 2609-2615.
6. Alexis Dupre--Demorsy, Olivier Coutelier, Mathias Destarac*, Clémence Nadal, Valérie Bourdon, Tsuyoshi Ando, Hiroharu Ajiro,
   “RAFT Polymerization of N-Methyl-N-Vinylacetamide and Related Double Hydrophilic Block copolymers”,
   Macromolecules 2022, 55, 1127-1138.
7. Hiroaki Yoshida*, Hiroya Furumai, Hiroharu Ajiro*,
   "Preparation and Characterization of Thermoresponsive Poly(N-vinylisobutyramide) Microgels"
   Langmuir, 2022, 38, 5269-5274.
8. Shin Asano, Jaeyeong Choi, Tran Thi Tran, Nalinthip Chanthaset, Hiroharu Ajiro*,
   “The influence of chain-end functionalization and sterecomplexation on the degradation stability under alkaline condition”
   Polym. Adv. Technol. 2022, 33(3), 991-999.
9. Oratai Jongprateep*, Chitlada Mani-lata, Yosita Sakunrak, Krittanant Audcharuk, Tithametha Narapong, Siraprapa Pitiphattharabun, Amornrat Lertworasirikul, Apirat Laobuthee, Naris Thengchaisri, Hiroharu Ajiro, Hiroaki Yoshida, Gasidit Panomsuwan*,
   “Titanium Dioxide and Fluoropolymer-based Coating for Smart Gowns with Antimicrobial and Fluid Repellent Properties”
   RSC Adv. 2022, 12, 588-594.
10. Jaeyeong Choi*, Hiroharu Ajiro*,
    “Preparation and analyses of stereocomplexes of a polylactide homopolymer and copolymer with poly(ethylene glycol) and urethane capping”
    Polym. J. 2022, 54, 151-160.

2021

1. Jaeyeong Choi, Malcolm A. Kelland, Hiroya Furumai, Yumi Miyaji, Yukako Nakai, Masayuki Fukushima, Hiroharu Ajiro*,
   “Preparation of poly(N-vinyl caprolactam) with various end groups using chain transfer agents and evaluation of their effects on kinetic hydrate inhibition”,
   Polym. Bull. accepted on 1st March 2021.
2. Ikuo Yamamoto,* Shinichi Minami, Tsuyoshi Ando, Hiroharu Ajiro*,
   “Radical Copolymerization on Fluoroalkyl α-Chloroacrylate Monomers for Copolymer Composition Control”,
   Polym. Bull. accepted on 16th January 2021.
3. Daisuke Aoki, Akihiro Miyake, Wanpen Tachaboonyakiat,* Hiroharu Ajiro *,
   “Remarkable Diastereomeric Effect on Thermoresponsive behavior of Polyurethane based on Lysine and Tartrate Ester Derivatives”
   RSC Adv. 2021, 11(56), 35607-35613.
4. Ryoga Fujiwara, Rikako Sanuki, Hiroharu Ajiro, Toshiaki Fukui, Shosuke Yoshida*,
   "Direct fermentative conversion of poly(ethylene terephthalate) into poly(hydroxyalkanoate) by Ideonella sakaiensis",
   Sci. Rep. 2021, 11, 19991.
5. Hiroaki Nobuoka, Rikyu Miyake, Jaeyeong Choi, Hiroaki Yoshida, Nalinthip Chanthaset, Hiroharu Ajiro*,
   “Synthesis of ester free type poly(trimethylene carbonate) derivatives bearing cycloalkyl side groups”
   Eur. Polym. J. 2021, 160, 110782.
6. Lee Yae Tan, Nalinthip Chanthaset,* Shinsuke Nanto, Ryoichi Soba, Masakazu Nagasawa, Hiroshi Ohno, Hiroharu Ajiro*,
   “Synthesis and Preparation of Cross-linked Films with Ester-Free Poly(trimethylene carbonate) Bearing Aromatic Urea Moiety”,
   Macromolecules 2021, 54(12) 5518–5525.
7. Jaeyeong Choi, Toshikazu Takata, Hiroharu Ajiro*,
   “Pseudo-polyrotaxane stereocomplex with α-cyclodextrin and block copolymers using poly(ethylene glycol) and polylactide”,
   Macromolecules 2021, 54(11) 5087–5093.
8. Daisuke Aoki, Hiroharu Ajiro*,
   “One-shot Preparation of Thermoresponsive Comb Polyurethane Hydrogel for Both High Toughness and Volume Switching”,
   Macromol. Rapid Commun., 2021. 42(13) 2100128.
9. Koichi Irikura, Natjaya Ekapakul, Chantiga Choochottiros, Nalinthip Chanthaset, Hiroaki Yoshida, Hiroharu Ajiro*,
   “Fabrication of flexible blend films using chitosan derivative and poly(trimethylene carbonate)”,
   Polym. J. 2021. 53(7) 823–833.
10. Daisuke Aoki, Hiroharu Ajiro*,
    “Clarification of the effects of topological isomer on mechanical strength of comb polyurethane”,
    Polym. Chem. 2021, 12(10), 1533-1539.
11. Steffen Seitz, Masaya Tsujimoto, Nalinthip Chanthaset, Hiroaki Yoshida, Hiroharu Ajiro*,
    “Novel approach to recover copper ions using poly(ethylene imine) based layer-by-layer coatings on icosane particles”,
    J. Appl. Polym. Sci. 2021, 138(15), 50202.

2020

1. Jaeyeong Choi, Hiroharu Ajiro*,
   “Preparation of novel branch polymer by lactide polymerization using psudorotaxane as initiator”,
   J. Networkpolymer, Jpn. 2020, 41(6), 226-236.
2. Narumi Kumamoto, Nalinthip Chanthaset, Hiroharu Ajiro*,
   “Polylactide stereocomplex bearing vinyl groups at chain ends prepared by allyl alcohol, malic acid, and citric acid”,
   Polym. Degrad. Stab. 2020, 180, 109311(1-7).
3. Hiroaki Nobuoka, Masakazu Nagasawa, Nalinthip Chanthaset, Hiroaki Yoshida, Yoshiaki Haramiishi, Hiroharu Ajiro*,
   “Synthesis of amphiphilic block copolymer using trimethylene carbonate bearing oligo(ethylene glycol) and investigation of thin film including cilostazol”,
   J. Polym. Sci. Part A., Polym. Chem. 2020, 58, 2347-2354.
4. Yoshiaki Haramiishi, Ryo Kawatani, Nalinthip Chanthaset, Hiroharu Ajiro*,
   “Preparation of Block Copolymer of Poly(trimethylene carbonate) with Oligo(ethylene glycol) and the Surface Properties of the Dip Coated Film”,
   Polym. Test. 2020, 86, 106484.
5. Ryo Kawatani, Malcolm A. Kelland, Hiroharu Ajiro*,
   “Design of a Rigid Side Chain for Poly(N-vinylamide) Derivatives Bearing an Alkenyl Group and Evaluation of Their Ability to Inhibit Tetrahydrofuran Hydrate Crystal Growth”,
   J. Appl. Polym. Sci. 2020, 137(38), 49154(1-9).
6. Natjaya Ekapakul, Koichi Irikura, Hiroharu Ajiro, Chantiga Choochottiros*,
   “Star-shaped Polycaprolactone/Chitosan Composite Hydrogels: Fabrication and Characterization”,
   Polym. Int. 2020, 69, 584-591.
7. Qian Zhang*, Malcolm A. Kelland*, Hiroharu Ajiro,
   “Polyvinylsulfonamides as Kinetic Hydrate Inhibitors”,
   Energ Fuel, 2020, 34, 2230-2237.
8. Nalinthip Chanthaset, Klaus Beckerle, Jun Okuda, Hiroharu Ajiro*,
   “Investigation of Ring Opening Polymerization of 5-[2-{2-(2-methoxyethoxy)ethyoxy}-ethoxymethyl]-5-methyl-1,3-dioxa-2-one by Organometallic Catalysts”,
   J. Appl. Polym. Sci. 2020, 137(36), 49073(1-12).
9. Nobuo Murase*, Tsuyoshi Ando, Hiroharu Ajiro*,
   “Synthesis of Spiropyran-Based Methacrylate at the Benzopyran Moiety and Control of the Water Repellency and Cell Adhesion of its Polymer Film”,
   J. Mater. Chem. B. 2020, 8, 1489-1495.
10. Kenta Yamatani, Ryo Kawatani, Hiroharu Ajiro*,
    “Synthesis of Glucosamine Derivative with Double Caffeic Acid Moieties at N- and 6-O-Positions for Developments of Natural Based Materials”,
    J. Mol. Struct. 2020, 1206, 127689(1-6).
11. Preeyarad Charoensumran, Hiroharu Ajiro*,
    Controlled Release of Testosterone by Polymer-polymer Interaction Enriched Organogel as a Novel Transdermal Drug Delivery System: Effect of Limonene/PG and Carbon-chain Length on Drug Permeability”,
    React. Funct. Polym. 2020, 148, 104461(1-9).

2019

1. Yoshiaki Haramiishi, Ryo Kawatani, Nalinthip Chanthaset, Hiroharu Ajiro*,
   “Viscoelastic Evaluation of Poly(trimethylene carbonate)s Bearing Oligoethylene glycol Units Which Shows Thermoresponsive Properties at Body Temperature”
   Macromol. Chem. Phys. 2019, 220, 1900019(1-6).
2. Hiroaki Nobuoka, Hiroharu Ajiro*
   “Development of Ester Free Type Poly(trimethylene carbonate) Derivatives with Pendant Fluoroaromatic Groups”
   Macromol. Chem. Phys. 2019 , 220, 1900051(1-5).
3. Kai Kan*, Mitsuru Akashi, Hiroharu Ajiro*
   “Dynamic Self-Assembly and Synthesis of Polylactide Bearing 5-Hydroxymethylfurfural Chain Ends”
   ACS Applied Polym. Mater. 2019, 1, 267−274.
4. Hiroaki Nobuoka, Hiroharu Ajiro*
   “Biodegradable and Biocompatible Crosslinked Film with Trimethylene Carbonate Bearing Oligo(ethylene glycol)”
   Chem. Lett. 2019, 48(3), 245-248.
5. Nalinthip Chanthaset, Hiroharu Ajiro*
   “Preparation of Thermosensitive Biodegradable Hydrogel Using Poly(5-[2-{2-(2-methoxyethoxy)ethyoxy}-ethoxymethyl]-5-methyl-1,3-dioxa-2-one) Derivatives”
   Materialia, 2019, 5, 100178.
6. Soma Chakraborty*, James Nicolas M. Pagaduan, Zarah Melgar, Steffen Seitz, Kai Kan, Hiroharu Ajiro
   “Glycerol-Modified Poly(ε-caprolactone): A Biocatalytic Approach to Improve The Hydrophilicity of Poly(ε-caprolactone)”
   Polym. Bull. 2019, 76(4), 1915-1928.
7. Hiroaki Nobuoka, Hiroharu Ajiro*
   “Novel synthesis method of ester free trimethylene carbonate derivatives”
   Tetrahedron Lett. 2019, 60(2), 164-170.
8. Steffen Seitz, Hiroharu Ajiro*
   “Self-Assembling Weak Polyelectrolytes for the Layer-by-Layer Encapsulation of Paraffin-Type Phase Change Material Icosane”
   Sol. Energy Mater. Sol. Cells 2019, 190, 57-64.

2018

1. Preeyarad Charoensumran, Hiroharu Ajiro*
   “Cationic Moieties in Polystyrene Gels Swollen with D-limonene Improved Transdermal Delivery System”
   Polymers 2018, 10(11), 1200.
2. Ryo Kawatani, Yuuki Kawata, Shin-ichi Yusa, Malcolm A. Kelland, Hiroharu Ajiro*
   “Synthesis of Thermosensitive Poly(N-vinylamide) Derivatives Bearing Oligo Ethylene Glycol Chain for Kinetic Hydrate Inhibitor”
   Macromolecules 2018, 51(19), 7845-7852.
3. Preeyarad Charoensumran, Hiroharu Ajiro*
   “The Electrostatic Advantages on Cross-linked Polystyrene Organogels Swollen with Limonene for Selective Adsorbent and Hydrophobic Drug Storage”
   Polym. J. 2018, 50, 1021-1028.
4. Mohamed Mady, Preeyarad Charoensumran, Hiroharu Ajiro, Malcolm A. Kelland*
   “Synthesis and Characterization of Modified Aliphatic Polycarbonates as Environmentally-Friendly Oilfield Scale Inhibitors”
   Energy & Fuels, 2018, 32(6), 6746-6755.
5. Daisuke Aoki, Hiroharu Ajiro*
   “Thermoresponsive Polyurethane Bearing Oligo(ethylene glycol) as Side Chain Without Polyol at Polymer Backbone Achieved Excellent Hydrophilic and Hydrophobic Switching”
   Macromol. Rapid Commun. 2018, 39(15) 1800239.
6. Qian Zhang, Ryo Kawatani, Hiroharu Ajiro, Malcolm A. Kelland*
   “Optimizing the Kinetic Hydrate Inhibition Performance of N-Alkyl-N-vinylamide Copolymers”
   Energy & Fuels, 2018, 32, 4925-4931.
7. Kai Kan, Hiroharu Ajiro*
   “Switchable Thermal Responsive Interpenetrate Polymer Network Gels by Poly(N-vinylacetamide) and Poly(N-vinylisobutyramide)”
   Chem. Lett. 2018, 47(4), 591-593.
8. Nalinthip Chanthaset, Hiroharu Ajiro, Mitsuru Akashi, and Chantiga Choochottiros*
   “A novel comb-shaped polymethacrylate-based copolymers with immobilized 2,4-dihydroxybenzaldehyde for antifungal activity”
   Polym. Bull., 2018, 75(4), 1349-1363.
9. Shinya Fujishiro, Daiki Minamino, Ikuo Obataya, Nobuhiro Saitoh, Yoichiroh Hosokawa, Hiroharu Ajiro*
   “Observation of Polylactide Stereocomplex by Atomic Force Microscopy”
   Chem. Lett. 2018, 47(1), 82-84.

2017

1. Daisuke Aoki, Hiroharu Ajiro*
   “Design of Polyurethane Composed of Only Hard Main Chain with Oligo(ethylene glycol) Units as Side Chain Simultaneously Achieved High Biocompatible and Mechanical Properties”
   Macromolecules 2017, 50(17), 6529-6538.
2. Nalinthip Chanthaset, Yoshikazu Takahashi, Yoshiaki Haramiishi, Mitsuru Akashi, Hiroharu Ajiro*
   “Control of Thermoresponsivity of Biocompatible Poly(trimethylene carbonate) with Direct Introduction of Oligo(ethylene glycol) under Various Circumstances”
   J. Polym. Sci. Part A: Polym. Chem. 2017, 55(20), 3466-3474.
3. Steffen Seitz, Mitsuru Akashi, Hiroharu Ajiro*
   “Pentaerythritol Particles Covered by Layer-by-Layer Self Assembled Thin Films with Stereocomplex of isotactic Poly(methyl methacrylate) and syndiotactic Poly(methyl methacrylate)”
   Colloid Polym. Sci., 2017, 295, 1541-1548.
4. Ryo Kawatani, Yasuhiro Nishiyama, Hironari Kamikubo, Kiyomi Kakiuchi, Hiroharu Ajiro*
   “Aggregation control by multi-stimuli-responsive poly(N-vinylamide) derivatives in aqueous system”
   Nanoscale Res. Lett. 2017, 12, 461.
5. Hayato Matsui*, Yuu Tada, Ryoji Fushimi, Sakiko Fujita, Masahiro Ito, Takashi Kawabe, Eiichi Ozeki*, Hiroharu Ajiro
   “Novel class of nanofiber hydrogels based on the biodegradable amphiphilic copolymers poly(sarcosine) and poly(L-lactic acid) and prepared using alcohols”
   Mater. Today Commun., 2017, 11, 156-162.
6. Asuka Kato, Kai Kan, Hiroharu Ajiro, Mitsuru Akashi*
   “Development of a Rapid in vitro Tissue Deadhesion System Using the Thermoresponsive Sol-gel Transition of Hydroxybutyl Chitosan”
   J. Biomater. Sci., Polym. Ed., 2017, 28, 958-973.
7. Shinya Fujishiro, Kai Kan, Mitsuru Akashi, Hiroharu Ajiro*
   “Stability of Adhesive Interfaces by Stereocomplex Formation of Polylactides and Hybridization with Nanoparticles”
   Polym. Degrad. Stab. 2017, 141, 69-76.
8. Hang Thi Tran, Hiroharu Ajiro*, Yi-Ju Hsiao, Mitsuru Akashi*
   “Thermally resistant polylactide layer-by-layer film prepared using an inkjet approach”
   Polym. J. 2017, 49(3), 327-334.
9. Hiroharu Ajiro*, Kai Kan, Mitsuru Akashi*
   “Thermal Treatment of Poly(N-vinylformamide) Produced Hydrogels without the Use of Chemical Crosslinkers”
   J. Nanosci. Nanotechnol. 2017, 17(1), 837-841.

2016

1. Kai Kan, Mitsuru Akashi, Hiroharu Ajiro*,
   “Polylactides bearing vanillin at chain end provided dual dynamic interactions: stereocomplex formation, and nanostructure control”
   Macromol. Chem. Phys. 2016, 217(24), 2679-2685. [Back Cover Picture]
2. Hiroharu Ajiro, Shun Takahama, Masashi Mizukami, Kai Kan, Mitsuru Akashi*, Kazue Kurihara*
   “Force Estimation on the Contact of Poly(L,L-lactide) and Poly(D,D-lactide) Surfaces Regarding Stereocomplex Formation”
   Langmuir 2016, 32(37), 9501-9506.
3. Kai Kan, Michiya Fujiki*, Mitsuru Akashi*, Hiroharu Ajiro*
   “Near-Ultraviolet Circular Dichroism of Achiral Phenolic Termini Induced by Nonchromophoric Poly(L,L-lactide) and Poly(D,D-lactide)”
   ACS Macro Letters, 2016, 5, 1014-1018.
4. Hiroharu Ajiro*, Tatsuaki Ueyama, Mitsuru Akashi*
   “Preparation of Macroporous Replica Particles Using Stereocomplex of isotactic Poly(methyl methacrylate) and syndiotactic Poly(methacrylic acid)”
   Colloids Surf. A, 2016, 506, 338-343.
5. Wanpen Tachaboonyakiat, Hiroharu Ajiro, Mitsuru Akashi*
   “Controlled DNA Interppolyelectrolyte Complex Formation or Dissociation via Stimuli-Responsive Poly(vinylamine-co-N-vinylisobutylamide)”
   J. Appl. Polym. Sci., 2016, 133(35), 43852.
6. Yoshiaki Haramiishi, Nalinthip Chanthaset, Kai Kan, Mitsuru Akashi, Hiroharu Ajiro*
   “Contrast Effect on Hydrolysis of Poly(trimethylene carbonate) Depending on Accelerated Species Due To the Hydrophilic Oligo(ethylene glycol) Units at Side Groups”
   Polym. Degrad. Stab. 2016, 130, 78-82.
7. Ryo Kawatani, Kai Kan, Malcolm A. Kelland, Mitsuru Akashi, Hiroharu Ajiro*
   “Remarkable Effect on Thermosensitive Behavior Regarding Alkylation at the Amide Position of Poly(N-vinylamide)s”
   Chem. Lett. 2016, 45(6), 589-591.
8. Hiroharu Ajiro*, Shogo Ito, Kai Kan, Mitsuru Akashi*
   “Catechin Modified Polylactide Stereocomplex at Chain End Improved Antibiobacterial Property”
   Macromol. Biosci. 2016, 16(5), 694-704.

2015

1. Hiroharu Ajiro, Yukie Takemoto, Kazuya Takemura, Taka-aki Asoh, Mitsuru Akashi*
   “Releasing Property from Surface Polyion Complex Gel”,
   J. Appl. Polym. Sci., 2015, 132(24), 42081.
2. Hang Thi Tran, Hiroharu Ajiro, Mitsuru Akashi*
   “Thermal Stable Polylactides by Stereocomplex Formation and Both Terminal Conjugation with Bio-based Cinnamic Acid Derivatives”
   RSC Adv. 2015, 5, 91423-91430.
3. Hiroharu Ajiro*, Ayaka Kuroda, Kai Kan, Mitsuru Akashi*
   “Stereocomplex Film Using Triblock Copolymers of Polylactide and Poly(ethylene glycol) Retain Paxlitaxel on Substrates by Aqueous Inkjet System”,
   Langmuir, 2015, 31(38), 10583-10589.
4. Malcolm Kelland*, Eirin Abrahamsen, Hiroharu Ajiro, Mitsuru Akashi,
   “Kinetic Hydrate Inhibition with N-Alkyl-N-vinylformamide Polymers: Comparison of Polymers with N-Propyl and iso-Propyl Groups”,
   Energy Fuels, 2015, 29(8), 4941-4946.
5. Yukie Takemoto, Hiroharu Ajiro, Mitsuru Akashi*
   “Hydrogen Bonded Multi-layer Films based on Poly(N-vinylamide) Derivatives and Tannic acid”,
   Langmuir, 2015, 31(24), 6863-6869.
6. Kazuya Takemura, Hiroharu Ajiro, Tomoko Fujiwara, Mitsuru Akashi*
   “A Novel Substrate for Testosterone: Biodegradable and Biocompatible Oil Gel”
   Polym. J., 2015, 47(6), 460-463.
7. Hiroharu Ajiro, Kazuya Takemura, Mitsuru Akashi*
   “Surface Polyion Complex Gel with Poly(vinylphosphonic acid) and Poly(N-vinylamide)s”
   J. Polym. Sci. Part A, Polym. Chem., 2015, 53(4), 562-566. [Cover Picture]

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