1
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Zhang X, Sun P, Jiang Y, Liao S. Organocatalytic Ring-Opening Polymerization of ϵ-Caprolactone with Phosphoramidimidates (PADIs) as a Bifunctional Brønsted Acid Catalyst. Chem Asian J 2023; 18:e202201127. [PMID: 36453087 DOI: 10.1002/asia.202201127] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022]
Abstract
In this study, an organocatalytic ring-opening polymerization (ROP) of ϵ-caprolactone (ϵ-CL) has been developed by employing PADIs as a novel and efficient acid/base bifunctional organocatalyst, which could afford metal-free poly(ϵ-caprolactone) with predictable molecular weight and narrow dispersity at a low catalyst loading under mild conditions. NMR and kinetic studies indicate that the ring-opening polymerizations of lactones catalyzed by PADIs proceed in a living and well controlled manner. Moreover, this organic Brønsted acid catalytic system could allow the synthesis of PCL with molecular weight above 60 kg/mol, as well as well-defined star polymers.
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Affiliation(s)
- Xun Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China.,Department State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry Chinese Academy of Sciences, Lingling Lu, Shanghai, 200032, P. R. China
| | - Pan Sun
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Yu Jiang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Saihu Liao
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University) College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China.,College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China
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2
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Xu Y, Wang L, Chen C, Huang P, Dai H, Jiang W, Zhou Y. Living Cationic Polymerization of ε-Caprolactone Catalyzed by a Metal-free Lewis Acid of Trityl Tetrafluoroborate. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yupo Xu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai200240, China
| | - Lei Wang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai200240, China
| | - Chuanshuang Chen
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai200240, China
| | - Pei Huang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai200240, China
| | - Haojie Dai
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai200240, China
| | - Wenfeng Jiang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai200240, China
| | - Yongfeng Zhou
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai200240, China
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3
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Li Y, Xu S, Ling J, Pan K, Liu Y, Chen Y. Diphenyl phosphate/ethyl diphenylphosphinite as an efficient organocatalytic system for ring-opening polymerization of ε-caprolactone and δ-valerolactone. Polym Chem 2022. [DOI: 10.1039/d1py01289d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel controlled/living ROP method of ε-CL and δ-VL using ethyl diphenylphosphinite/diphenyl phosphate (EDPP/DPP) organocatalytic system was revealed, which involves the activated monomer mechanism and the reversible chain end deactivation process.
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Affiliation(s)
- Yanping Li
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong, 518060, China
| | - Songyi Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ke Pan
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong, 518060, China
| | - Yujian Liu
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong, 518060, China
| | - Yougen Chen
- Institute for Advanced Study, Shenzhen University, Nanshan District Shenzhen, Guangdong, 518060, China
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4
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Development and Evaluation of Matrices Composed of β-cyclodextrin and Biodegradable Polyesters in the Controlled Delivery of Pindolol. Pharmaceutics 2020; 12:pharmaceutics12060500. [PMID: 32486203 PMCID: PMC7355766 DOI: 10.3390/pharmaceutics12060500] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/20/2020] [Accepted: 05/27/2020] [Indexed: 11/24/2022] Open
Abstract
Polymer-drug conjugates are currently being more widely investigated for the treatment of hypertension. In view of the above, in the first stage of our work, we used nontoxic β-cyclodextrin (β-CD) as effective, simple, inexpensive, and safe for the human body initiator for the synthesis of biocompatible and biodegradable functionalized polymers suitable for the medical and pharmaceutical applications. The obtained polymeric products were synthesized through a ring-opening polymerization (ROP) of ε-caprolactone (CL), d,l-, and l,l-lactide (LA and LLA). The chemical structures of synthesized materials were elucidated based on 1H NMR and solid-state carbon-13 cross-polarization/magic angle spinning nuclear magnetic resonance (13C CP/MAS NMR) analysis, while the incorporation of β-CD molecule into the polymer chain was confirmed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Furthermore, molecular modeling has been applied to investigate the intrachain rigidities and chain architectures for several representative structures. The obtained and thoroughly characterized branched matrices were then used to generate the first β-cyclodextrin/biodegradable polymer/β-blocker conjugate through the successful conjugation of pindolol. The conjugates were fabricated by carbodiimide-mediated coupling reaction. The branched biodegradable materials released the drug in vitro in a sustained manner and without “burst release” and thus have the ability to treat different heart diseases.
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5
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Imidodiphosphorimidate (IDPi) as an efficient organocatalyst for controlled/living ring-opening polymerization of lactones. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2019.109449] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Zeng F, Yang X, Li D, Dai L, Zhang X, Lv Y, Wei Z. Functionalized polyesters derived from glycerol: Selective polycondensation methods toward glycerol‐based polyesters by different catalysts. J Appl Polym Sci 2019. [DOI: 10.1002/app.48574] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Fenfen Zeng
- School of Chemistry and Chemical Engineering, Shihezi University Shihezi 832003 China
| | - Xin Yang
- School of Chemistry and Chemical Engineering, Shihezi University Shihezi 832003 China
| | - Dexing Li
- School of Chemistry and Chemical Engineering, Shihezi University Shihezi 832003 China
| | - Li Dai
- School of Chemistry and Chemical Engineering, Shihezi University Shihezi 832003 China
| | - Xinyan Zhang
- School of Chemistry and Chemical Engineering, Shihezi University Shihezi 832003 China
| | - Yin Lv
- School of Chemistry and Chemical Engineering, Shihezi University Shihezi 832003 China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University Shihezi 832003 China
| | - Zhong Wei
- School of Chemistry and Chemical Engineering, Shihezi University Shihezi 832003 China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University Shihezi 832003 China
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7
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Synthesis, characterization and non-isothermal degradation kinetics of poly(ε-caprolactone)/Fe3O4-dye nanocomposites. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0489-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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8
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Dong H, Zhu Y, Li Z, Xu J, Liu J, Xu S, Wang H, Gao Y, Guo K. Dual Switching in Both RAFT and ROP for Generation of Asymmetric A2A1B1B2 Type Tetrablock Quaterpolymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01784] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- He Dong
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
| | - Yuejia Zhu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
| | - Zhenjiang Li
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
| | - Jiaxi Xu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
| | - Jingjing Liu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
| | - Songquan Xu
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
| | - Haixin Wang
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
| | - Yu Gao
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
| | - Kai Guo
- State Key Laboratory of Materials-Oriented
Chemical Engineering, College of Biotechnology and Pharmaceutical
Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, China
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9
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Sun H, Xu S, Li Z, Xu J, Liu J, Wang X, Wang H, Dong H, Liu Y, Guo K. A preorganized dual H-bond donor promotes benzoic acid active in the polymerization of δ-valerolactone. Polym Chem 2017. [DOI: 10.1039/c7py01192j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enzyme-mimetic model follows squalene hopene cyclase is success in catalysis of ROP of δ-valerolactone in solution at room temperature by a carboxylic “strong” acid.
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10
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Xu J, Yang K, Li Z, Liu J, Sun H, Xu S, Wang H, Guo T, Dong H, Guo K. Tunable intramolecular H-bonding promotes benzoic acid activity in polymerization: inspiration from nature. Polym Chem 2017. [DOI: 10.1039/c7py01451a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Intramolecular H-bonding of ortho-amido group(s) tuned benzoic acid into strong Brønsted acid active in ring-opening polymerizations of lactones and trimethylene carbonate at room temperature in solutions.
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Affiliation(s)
- Jiaxi Xu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Kun Yang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zhenjiang Li
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
| | - Jingjing Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Herui Sun
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Songquan Xu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Haixin Wang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Tianfo Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - He Dong
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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11
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Abstract
In contrast to the conventional group transfer polymerization (GTP) using a catalyst of either an anionic nucleophile or a transition-metal compound, the organocatalyzed GTP has to a great extent improved the living characteristics of the polymerization from the viewpoints of synthesizing structurally well-defined acrylic polymers and constructing defect-free polymer architectures. In this article, we describe the organocatalyzed GTP from a relatively personal perspective to provide our colleagues with a perspicuous and systematic overview on its recent progress as well as a reply to the curiosity of how excellently the organocatalysts have performed in this field. The stated perspectives of this review mainly cover five aspects, in terms of the assessment of the livingness of the polymerization, limit and scope of applicable monomers, mechanistic studies, control of the polymer structure, and a new GTP methodology involving the use of tris(pentafluorophenyl)borane and hydrosilane.
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Affiliation(s)
- Yougen Chen
- Institute for Advanced Study Shenzhen University, Nanshan District Shenzhen, Guangdong, 518060, P. R. China. .,Frontier Chemistry Center Faculty of Engineering Hokkaido University, N13 W8, Sapporo, 060-8628, Japan.
| | - Toyoji Kakuchi
- Frontier Chemistry Center Faculty of Engineering Hokkaido University, N13 W8, Sapporo, 060-8628, Japan.,Research Center for Polymer Materials School of Materials Science and Engineering Changchun University of Science and Technology, Weixing Road 7989, Changchun Jilin, 130022, P. R. China
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12
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Piotrowska U, Sobczak M, Oledzka E, Combes C. Effect of ionic liquids on the structural, thermal, andin vitrodegradation properties of poly(ε-caprolactone) synthesized in the presence ofCandida antarcticalipase B. J Appl Polym Sci 2016. [DOI: 10.1002/app.43728] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Urszula Piotrowska
- Department of Inorganic and Analytical Chemistry; Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw; Banacha 1 Warsaw 02-097 Poland
| | - Marcin Sobczak
- Department of Inorganic and Analytical Chemistry; Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw; Banacha 1 Warsaw 02-097 Poland
- Chair of Chemistry; Department of Organic Chemistry; Faculty of Materials Science and Design, Kazimierz Pulaski University of Technology and Humanities in Radom; Chrobrego 27 Radom 26-600 Poland
| | - Ewa Oledzka
- Department of Inorganic and Analytical Chemistry; Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw; Banacha 1 Warsaw 02-097 Poland
| | - Christèle Combes
- CIRIMAT, Université de Toulouse, CNRS, INPT, UPS, ENSIACET, 4 allée Emile Monso, CS 44362; 31030 Toulouse cedex 4 France
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13
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Anand A, Kulkarni RD, Patil CK, Gite VV. Utilization of renewable bio-based resources, viz. sorbitol, diol, and diacid, in the preparation of two pack PU anticorrosive coatings. RSC Adv 2016. [DOI: 10.1039/c5ra17202k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present work reveals utilization of renewable sources sorbitol, diacids, and 1,4-butanediol in synthesizing the polyol for polyurethane coatings rather than consumption of petroleum source based ingredients.
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Affiliation(s)
- Abhijeet Anand
- School of Chemical Sciences
- North Maharashtra University
- Jalgaon-425 001
- India
| | - Ravindra D. Kulkarni
- University Institute of Chemical Technology
- North Maharashtra University
- Jalgaon-425 001
- India
| | | | - Vikas V. Gite
- School of Chemical Sciences
- North Maharashtra University
- Jalgaon-425 001
- India
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14
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Xu J, Liu J, Li Z, Li X, Chen C, Zhao C, Xu S, Pan X, Liu J, Guo K. Three is company: dual intramolecular hydrogen-bond enabled carboxylic acid active in ring-opening polymerization. Polym Chem 2016. [DOI: 10.1039/c5py01635e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dual intramolecular H-bonding made weak Brønsted acid an active catalyst in cationic ring-opening polymerizations.
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15
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Kailash S, Meenarathi B, Palanikumar S, Anbarasan R. Synthesis, Characterization, Drug Delivery, and Splinting Activity of Folic Acid Bridged Poly(ɛ-caprolactone-co-tetrahydrofuran). INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2014.996711] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Chiacchiarelli LM, Monsalve L, Vázquez A, Kenny JM, Torre L. A polycaprolactone-based compatibilization treatment to improve dispersion and interphase structure of silica polyurethane composites. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23723] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Leonel Matias Chiacchiarelli
- Department of Civil and Environmental Engineering; University of Perugia; UdR INSTM, Strada di Pentima 4 05100 Terni Italy
| | - Leandro Monsalve
- Polymer and Composite Material Group, INTECIN-CONICET, Construction Department, Engineering Faculty; Universidad de Buenos Aires; Las Heras 2214, 1127AAR Buenos Aires Argentina
| | - Analía Vázquez
- Polymer and Composite Material Group, INTECIN-CONICET, Construction Department, Engineering Faculty; Universidad de Buenos Aires; Las Heras 2214, 1127AAR Buenos Aires Argentina
| | - José M. Kenny
- Department of Civil and Environmental Engineering; University of Perugia; UdR INSTM, Strada di Pentima 4 05100 Terni Italy
- Institute of Polymer Science and Technology; CSIC, Juan de la Cierva 3 28006 Madrid Spain
| | - Luigi Torre
- Department of Civil and Environmental Engineering; University of Perugia; UdR INSTM, Strada di Pentima 4 05100 Terni Italy
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17
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Controlled/living ring-opening polymerization of ɛ-caprolactone catalyzed by phosphoric acid. Sci China Chem 2012. [DOI: 10.1007/s11426-012-4586-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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18
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Oledzka E, Kaliszewska D, Sobczak M, Raczak A, Nickel P, Kolodziejski W. Synthesis and properties of a star-shaped poly(ϵ-caprolactone)-ibuprofen conjugate. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:2039-54. [PMID: 22040511 DOI: 10.1163/092050611x605230] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A series of novel star-shaped poly(ϵ-caprolactone) (PCL) biodegradable polyesters were synthesized through ring-opening polymerization of ϵ-caprolactone in the presence of a poly(amidoamine) (PAMAM) dendrimer initiator. The polymers (PAMAM/PCLs) were obtained with a high yield (92%) and a number-average molecular weight of up to 14 000 g/mol. The nonlinear structure of PAMAM/PCLs was confirmed by nuclear magnetic resonance, gel-permeation chromatography, thermogravimetric analysis and differential scanning calorimetry. Thermal analysis indicated that the star-shaped PAMAM/PCLs had a melting point, degree of crystallinity, glass transition temperature and maximum decomposition temperature all lower than those of linear PCL. Ibuprofen (IBU), a popular non-steroidal anti-inflammatory drug, was co-valently (ester) bonded to the PAMAM/PCL molecules using the DCC/DMAP coupling method (DCC, N,N'-dicyclohexylcarbodiimide; DMAP, 4-(dimethylamino)pyridine). A high drug content (33.1 mol%) in the conjugate was obtained. The in-vitro drug-release profiles of IBU from the PAMAM/PCL/IBU conjugate were examined and found adequate for drug-carrier applications of our star-shaped polymers.
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Affiliation(s)
- Ewa Oledzka
- a Department of Inorganic and Analytical Chemistry , Faculty of Pharmacy, Medical University of Warsaw , Banacha 1 , Warsaw , 02-097 , Poland
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19
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Kang S, Li X, Fan J, Chang J. Classified Separation of Lignin Hydrothermal Liquefied Products. Ind Eng Chem Res 2011. [DOI: 10.1021/ie2011356] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shimin Kang
- The Key Lab of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Xianglan Li
- The Key Lab of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Juan Fan
- The Key Lab of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Jie Chang
- The Key Lab of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
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20
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21
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Makiguchi K, Satoh T, Kakuchi T. Synthesis of various end-functionalized polyesters by controlled/living ring-opening polymerization of lactones using pentafluorophenylbis(triflyl)methane. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24815] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Makiguchi K, Satoh T, Kakuchi T. Diphenyl Phosphate as an Efficient Cationic Organocatalyst for Controlled/Living Ring-Opening Polymerization of δ-Valerolactone and ε-Caprolactone. Macromolecules 2011. [DOI: 10.1021/ma200043x] [Citation(s) in RCA: 241] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kosuke Makiguchi
- Graduate School of Chemical Sciences and Engineering and Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toshifumi Satoh
- Graduate School of Chemical Sciences and Engineering and Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Toyoji Kakuchi
- Graduate School of Chemical Sciences and Engineering and Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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