1
|
Pietrangelo A, Burns AB, Charlton RT, DeRocco MT, Gopinadhan M, Sun T, Wang L, Wright PJ, Stober ST, Yang Q, Martini A. Methanol-Assisted ADMET Polymerization of Semiaromatic Amides. ACS Macro Lett 2023; 12:605-611. [PMID: 37071887 DOI: 10.1021/acsmacrolett.3c00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
A method for the acyclic diene metathesis polymerization of semiaromatic amides is described. The procedure uses second-generation Grubbs' catalyst and N-cyclohexyl-2-pyrrolidone (CHP), a high boiling, polar solvent capable of solubilizing both monomer and polymer. The addition of methanol to the reaction was found to significantly increase polymer molar mass although the role of the alcohol is currently not understood. Hydrogenation with hydrogen gas and Wilkinson's catalyst resulted in near-quantitative saturation. All polymers synthesized here exhibit a hierarchical semicrystalline morphology driven by ordering of aromatic amide groups via strong nonbonded interactions. Furthermore, the melting points can be tuned over a >100 °C range by precise substitution at just one of the backbone positions on each mer (<5% of the total).
Collapse
Affiliation(s)
- Agostino Pietrangelo
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Adam B Burns
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Ryan T Charlton
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Matthew T DeRocco
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Manesh Gopinadhan
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Thomas Sun
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Lesheng Wang
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Pamela J Wright
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Spencer T Stober
- ExxonMobil Technology and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Quanpeng Yang
- Department of Mechanical Engineering, University of California, Merced, 5200 N. Lake Road, Merced, California 95343, United States
| | - Ashlie Martini
- Department of Mechanical Engineering, University of California, Merced, 5200 N. Lake Road, Merced, California 95343, United States
| |
Collapse
|
2
|
Schlicht S, Drummer D. Eutectic In Situ Modification of Polyamide 12 Processed through Laser-Based Powder Bed Fusion. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2050. [PMID: 36903165 PMCID: PMC10003968 DOI: 10.3390/ma16052050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Laser-based powder bed fusion (LPBF) of polymers allows for the additive manufacturing of dense components with high mechanical properties. Due to inherent limitations of present material systems suitable for LPBF of polymers and required high processing temperatures, the present paper investigates the in situ modification of material systems using powder blending of p-aminobenzoic acid and aliphatic polyamide 12, followed by subsequent laser-based additive manufacturing. Prepared powder blends exhibit a considerable reduction of required processing temperatures dependent on the fraction of p-aminobenzoic acid, allowing for the processing of polyamide 12 at a build chamber temperature of 141.5 °C. An elevated fraction of 20 wt% of p-aminobenzoic acid allows for obtaining a considerably increased elongation at break of 24.65% ± 2.87 while exhibiting a reduced ultimate tensile strength. Thermal investigations demonstrate the influence of the thermal material history on thermal properties, associated with the suppression of low-melting crystalline fractions, yielding amorphous material properties of the previously semi-crystalline polymer. Based on complementary infrared spectroscopic analysis, the increased presence of secondary amides can be observed, indicating the influence of both covalently bound aromatic groups and hydrogen-bound supramolecular structures on emerging material properties. The presented approach represents a novel methodology for the energy-efficient in situ preparation of eutectic polyamides, potentially allowing for the manufacturing of tailored material systems with adapted thermal, chemical, and mechanical properties.
Collapse
Affiliation(s)
- Samuel Schlicht
- Institute of Polymer Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Am Weichselgarten 10, 91058 Erlangen, Germany
- Collaborative Research Center 814, Friedrich-Alexander-Universität Erlangen-Nürnberg, Am Weichselgarten 10, 91058 Erlangen, Germany
| | - Dietmar Drummer
- Institute of Polymer Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Am Weichselgarten 10, 91058 Erlangen, Germany
- Collaborative Research Center 814, Friedrich-Alexander-Universität Erlangen-Nürnberg, Am Weichselgarten 10, 91058 Erlangen, Germany
| |
Collapse
|
3
|
Kudo R, Tsukamoto T, Nakajo S, Fujimori A, Oishi Y, Shibasaki Y. Synthesis of A2+B3 type hyperbranched poly(amide-ether) block copolymer and its shape memory function. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
4
|
Dzhardimalieva GI, Zharmagambetova AK, Kudaibergenov SE, Uflyand IE. Polymer-Immobilized Clusters and Metal Nanoparticles in Catalysis. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420020044] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
5
|
Shamsipur M, Samandari L, Taherpour A(A, Pashabadi A. Sub-femtomolar detection of HIV-1 gene using DNA immobilized on composite platform reinforced by a conductive polymer sandwiched between two nanostructured layers: A solid signal-amplification strategy. Anal Chim Acta 2019; 1055:7-16. [DOI: 10.1016/j.aca.2018.12.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/25/2018] [Accepted: 12/07/2018] [Indexed: 12/28/2022]
|
6
|
Kudaibergenov SE. Physicochemical, Complexation and Catalytic Properties of Polyampholyte Cryogels. Gels 2019; 5:gels5010008. [PMID: 30795568 PMCID: PMC6473870 DOI: 10.3390/gels5010008] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/11/2019] [Accepted: 02/18/2019] [Indexed: 12/24/2022] Open
Abstract
Polyampholyte cryogels are a less considered subject in comparison with cryogels based on nonionic, anionic and cationic precursors. This review is devoted to physicochemical behavior, complexation ability and catalytic properties of cryogels based on amphoteric macromolecules. Polyampholyte cryogels are able to exhibit the stimuli-responsive behavior and change the structure and morphology in response to temperature, pH of the medium, ionic strength and water–organic solvents. Moreover, they can uptake transition metal ions, anionic and cationic dyes, ionic surfactants, polyelectrolytes, proteins, and enzymes through formation of coordination bonds, hydrogen bonds, and electrostatic forces. The catalytic properties of polyampholyte cryogels themselves and with immobilized metal nanoparticles suspended are outlined following hydrolysis, transesterification, hydrogenation and oxidation reactions of various substrates. Application of polyampholyte cryogels as a protein-imprinted matrix for separation and purification of biomacromolecules and for sustained release of proteins is demonstrated. Comparative analysis of the behavior of polyampholyte cryogels with nonionic, anionic and cationic precursors is given together with concluding remarks.
Collapse
Affiliation(s)
- Sarkyt E Kudaibergenov
- Institute of Polymer Materials and Technology, Microregion "Atyrau 1", house 3/1, Almaty 050019, Kazakhstan.
- Laboratory of Engineering Profile, K.I. Satpayev Kazakh National Research Technical University, Satpayev Str. 22, Almaty 050013, Kazakhstan.
| |
Collapse
|
7
|
Shibasaki Y, Mori T, Fujimori A, Jikei M, Sawada H, Oishi Y. Poly(amide–ether) Thermoplastic Elastomers Based on Monodisperse Aromatic Amide Hard Segments as Shape-Memory and Moisture-Responsive Materials. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01817] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yuji Shibasaki
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Toshiki Mori
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Atsuhiro Fujimori
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Mitsutoshi Jikei
- Department of Applied Chemistry, Akita University, 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502, Japan
| | - Hideo Sawada
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Japan
| | - Yoshiyuki Oishi
- Department of Chemistry & Biological Sciences, Faculty of Science & Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| |
Collapse
|
8
|
Singh A, Singh SK, Saini AK, Mobin SM, Mathur P. Facile oxidation of alcohols to carboxylic acids in basic water medium by employing ruthenium picolinate cluster as an efficient catalyst. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4574] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ajeet Singh
- Discipline of Chemistry; Simrol, Khandwa Road Indore 453552 India
| | - Sandip K. Singh
- Discipline of Chemistry; Simrol, Khandwa Road Indore 453552 India
| | - Anoop K. Saini
- Discipline of Chemistry; Simrol, Khandwa Road Indore 453552 India
| | - Shaikh M. Mobin
- Discipline of Chemistry; Simrol, Khandwa Road Indore 453552 India
- Discipline of Biosciences and Bio-Medical Engineering; Simrol, Khandwa Road Indore 453552 India
- Discipline of Metallurgy Engineering and Materials Science; Indian Institute of Technology Indore; Simrol, Khandwa Road Indore 453552 India
| | - Pradeep Mathur
- Discipline of Chemistry; Simrol, Khandwa Road Indore 453552 India
| |
Collapse
|
9
|
Kudaibergenov S, Dauletbekova M, Toleutay G, Kabdrakhmanova S, Seilkhanov T, Abdullin K. Hydrogenation of p-Nitrobenzoic Acid by Gold and Palladium Nanoparticles Immobilized Within Macroporous Amphoteric Cryogels in Aqueous Solution. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0930-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
10
|
Shidara Y, Yunoki T, Miura S, Shibasaki Y, Fujimori A. Effect of the isothermal crystallization method on amorphous block copolymers of aromatic polyamides and their packing behavior in two-dimensional films for screening of potential crystallization ability. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yusaku Shidara
- Graduate School of Science and Engineering, Faculty of Engineering; Saitama University, 255 Shimo-okubo; Sakura-ku Saitama 338-8570 Japan
| | - Takeru Yunoki
- Department of Functional Materials Science, Faculty of Engineering; Saitama University, 255 Shimo-okubo; Sakura-ku Saitama 338-8570 Japan
| | - Shuntaro Miura
- Graduate School of Science and Engineering, Faculty of Engineering; Saitama University, 255 Shimo-okubo; Sakura-ku Saitama 338-8570 Japan
| | - Yuji Shibasaki
- Department of Chemistry, Faculty of Science & Engineering; Iwate University, 4-3-5 Ueda; Morioka Iwate 020-8552 Japan
- Department of Biological Sciences, Faculty of Science & Engineering; Iwate University, 4-3-5 Ueda; Morioka Iwate, 020-8552 Japan
| | - Atsuhiro Fujimori
- Graduate School of Science and Engineering, Faculty of Engineering; Saitama University, 255 Shimo-okubo; Sakura-ku Saitama 338-8570 Japan
| |
Collapse
|
11
|
Miura S, Shidara Y, Yunoki T, Mamun MAA, Shibasaki Y, Fujimori A. High-Density Packing of Amorphous Polymer with Bulky Aromatic Rings in Interfacial Molecular Films. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201600520] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shuntaro Miura
- Graduate School of Science and Engineering; Saitama University; 255 Shimo-okubo Sakura-ku Saitama 338-8570 Japan
| | - Yusaku Shidara
- Graduate School of Science and Engineering; Saitama University; 255 Shimo-okubo Sakura-ku Saitama 338-8570 Japan
| | - Takeru Yunoki
- Department of Functional Materials Science; Saitama University; 255 Shimo-okubo Sakura-ku Saitama 338-8570 Japan
| | - Muhammad Abdullah Al Mamun
- Graduate School of Science and Engineering; Saitama University; 255 Shimo-okubo Sakura-ku Saitama 338-8570 Japan
| | - Yuji Shibasaki
- Faculty of Engineering; Iwate University; 3-18-8 Ueda Morioka Iwate 020-8550 Japan
| | - Atsuhiro Fujimori
- Graduate School of Science and Engineering; Saitama University; 255 Shimo-okubo Sakura-ku Saitama 338-8570 Japan
| |
Collapse
|
12
|
Mori T, Masukawa S, Kikkawa T, Fujimori A, Satoh A, Matsumoto K, Jikei M, Oishi Y, Shibasaki Y. Rapid synthesis and properties of segmented block copolymers based on monodisperse aromatic poly(N-methyl benzamide) and poly(propylene oxide). RSC Adv 2017. [DOI: 10.1039/c7ra05161a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monodisperse aromatic N-methyl benzamide-based molecules (Mw/Mn = 1.02–1.04) with terephthalic acid at both sides (MABx–x) were rapidly prepared by a step-wise reaction using the reported one-pot dendrimer synthetic method.
Collapse
Affiliation(s)
- T. Mori
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - S. Masukawa
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - T. Kikkawa
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - A. Fujimori
- Graduate School of Science and Engineering
- Saitama University
- Saitama 338-8570
- Japan
| | - A. Satoh
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - K. Matsumoto
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - M. Jikei
- Department of Applied Chemistry
- Akita University
- Akita-shi
- Japan
| | - Y. Oishi
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| | - Y. Shibasaki
- Department of Chemistry & Biological Sciences
- Faculty of Science & Engineering
- Iwate University
- Iwate 020-8551
- Japan
| |
Collapse
|
13
|
Zhilitskaya LV, Yarosh NO, Shagun LG, Dorofeev IA, Larina LI. The reaction of para-aminobenzoic acid with 1-iodopropan-2-one. RUSS J GEN CHEM+ 2016. [DOI: 10.1134/s1070363216080314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
14
|
Aiba M, Higashihara T, Ashizawa M, Otsuka H, Matsumoto H. Triggered Structural Control of Dynamic Covalent Aromatic Polyamides: Effects of Thermal Reorganization Behavior in Solution and Solid States. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b01778] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Motohiro Aiba
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Tomoya Higashihara
- Department
of Polymer Science and Engineering, Faculty of Engineering, Yamagata University,
4-3-16 Jonan, Yonezawa City, Yamagata 992-8510, Japan
| | - Minoru Ashizawa
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Hideyuki Otsuka
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Hidetoshi Matsumoto
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| |
Collapse
|
15
|
Masukawa S, Kikkawa T, Fujimori A, Oishi Y, Shibasaki Y. Synthesis of a A2B3-type Hyperbranched Copolymers Based on a 3-Armed Unimolecular 4-N-Methylbenzamide Pentamer and Poly(propylene oxide). CHEM LETT 2015. [DOI: 10.1246/cl.150022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Shinya Masukawa
- Department of Chemistry and Bioengineering, Faculty of Engineering, Iwate University
| | | | | | - Yoshiyuki Oishi
- Department of Chemistry and Bioengineering, Faculty of Engineering, Iwate University
| | - Yuji Shibasaki
- Department of Chemistry and Bioengineering, Faculty of Engineering, Iwate University
| |
Collapse
|
16
|
Fujimori A, Kaneko Y, Kikkawa T, Chiba S, Shibasaki Y. Fabrication and structure of "polymer nanosphere multilayered organization". J Colloid Interface Sci 2014; 418:338-49. [PMID: 24461854 DOI: 10.1016/j.jcis.2013.12.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/13/2013] [Accepted: 12/16/2013] [Indexed: 11/19/2022]
Abstract
We constructed a multiparticle layered organization of aromatic polyamides with rigid main chains and flexible side chains by the Langmuir-Blodgett (LB) technique, which resulted in a highly regular arrangement along the c-axis. The particle arrangement was estimated by performing out-of-plane X-ray diffraction (XRD) analysis and atomic force microscopic (AFM) observation. The results suggest that a double-particle layered structure (Y-type) is formed by the LB technique, forming amphiphilic particles at the air/water interface. Copolymers with highly hydrophobic carbazole contents and both hydrogenated and fluorinated side-chains also formed a single-particle layer at the air/water interface and exhibited multiparticle layers by a LB technique. Therefore, it is possible to control the formation of single- and double-particle layered structure using these techniques. Further, it was found that multiparticle layered organization of polymer nanospheres and polymer nanosheets could be formed simultaneously with the same component material.
Collapse
Affiliation(s)
- Atsuhiro Fujimori
- Graduate School of Science and Engineering, Faculty of Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan.
| | - Yohei Kaneko
- Graduate School of Science and Engineering, Faculty of Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Takahiro Kikkawa
- Department of Functional Materials Science, Faculty of Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Satoshi Chiba
- Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonazawa, Yamagata 992-8510, Japan
| | - Yuji Shibasaki
- Department of Chemistry and Bioengineering, Faculty Engineering, Iwate University, Ueda 4-3-5, Morioka, Iwate 020-8551, Japan
| |
Collapse
|
17
|
Synthesis of polyguanamines from 2-N,N-dibutylamino-4,6-dichloro-1,3,5-triazine with aromatic diamines. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2013.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
18
|
FUJIMORI A. Structural Chemistry of Ultra-Thin Organized Molecular Films of Polymers —From Langmuir-Blodgett Film to Layered Organization of Polymer Nano-Sphere—. KOBUNSHI RONBUNSHU 2011. [DOI: 10.1295/koron.68.579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
19
|
NOBUKE K, YAMAKADO R, TAKAGI K. Polycondensation of 4-Octylaminobenzoic Acid Esters Having Bithiophene at 3-Position and Optical Properties of the Polymers. KOBUNSHI RONBUNSHU 2011. [DOI: 10.1295/koron.68.33] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|