1
|
Li Y, Wang X, He Z, Johnson M, A S, Lara-Sáez I, Lyu J, Wang W. 3D Macrocyclic Structure Boosted Gene Delivery: Multi-Cyclic Poly(β-Amino Ester)s from Step Growth Polymerization. J Am Chem Soc 2023; 145:17187-17200. [PMID: 37490481 PMCID: PMC10416306 DOI: 10.1021/jacs.3c04191] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Indexed: 07/27/2023]
Abstract
The topological structures of polymers play a critical role in determining their gene delivery efficiency. Exploring novel polymeric structures as gene delivery vectors is thus of great interest. In this work, a new generation of multi-cyclic poly(β-amino ester)s (CPAEs) with unique topology structure was synthesized for the first time via step growth polymerization. Through controlling the occurrence stage of cyclization, three types of CPAEs with rings of different sizes and topologies were obtained. In vitro experiments demonstrated that the CPAEs with macro rings (MCPAEs) significantly boosted the transgene expression comparing to their branched counterparts. Moreover, the MCPAE vector with optimized terminal group efficiently delivered the CRISPR plasmid coding both Staphylococcus aureus Cas9 nuclease and dual guide sgRNAs for gene editing therapy.
Collapse
Affiliation(s)
- Yinghao Li
- Research
and Clinical Translation Center of Gene Medicine and Tissue Engineering,
School of Public Health, Anhui University
of Science and Technology, Huainan 232001, China
- Charles
Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Dublin D04V1W8, Ireland
| | - Xianqing Wang
- Charles
Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Dublin D04V1W8, Ireland
| | - Zhonglei He
- Research
and Clinical Translation Center of Gene Medicine and Tissue Engineering,
School of Public Health, Anhui University
of Science and Technology, Huainan 232001, China
- Charles
Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Dublin D04V1W8, Ireland
| | - Melissa Johnson
- Charles
Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Dublin D04V1W8, Ireland
| | - Sigen A
- Charles
Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Dublin D04V1W8, Ireland
- School
of Medicine, Anhui University of Science
and Technology, Huainan 232001, China
| | - Irene Lara-Sáez
- Charles
Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Dublin D04V1W8, Ireland
| | - Jing Lyu
- Charles
Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Dublin D04V1W8, Ireland
| | - Wenxin Wang
- Research
and Clinical Translation Center of Gene Medicine and Tissue Engineering,
School of Public Health, Anhui University
of Science and Technology, Huainan 232001, China
- Charles
Institute of Dermatology, School of Medicine, University College Dublin, Dublin 4, Dublin D04V1W8, Ireland
| |
Collapse
|
2
|
Nieuwendaal RC, Wilbur JD, Welsh D, Witherspoon V, Stafford CM. A method to quantify composition, purity, and cross-link density of the active polyamide layer in reverse osmosis composite membranes using 13C cross polarization magic angle spinning nuclear magnetic resonance spectroscopy. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
3
|
Legrand S, Kärkkäinen A. 1,3-Dimethyl-tetrakis(2-triphenylsilylethyl)dimethyldisiloxane: a new carbosilane for the preparation of high-refractive-index films. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2021. [DOI: 10.1515/znb-2021-0046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Abstract
A new carbosilane has been synthesised in one step by hydrosilylation of 1,3-dimethyl-tetravinyldisiloxane with triphenyl silane. The new carbosilane has been characterized by 1D and 2D NMR, MS, and Gel Permeation Chromatography (GPC). The new carbosilane has been spin-coated on silicon wafers to prepare a film with very high refractive index (μ = 1.520) and excellent hydrophobicity. The film has also been analysed by Diffuse Reflectance Infrared Spectroscopy (DRIFT). The preparation of the new carbosilane does not generate waste, and its application can be easily scaled-up. Consequently, the new precursor is likely to be very useful for industrial optoelectronic applications.
Collapse
Affiliation(s)
- Sacha Legrand
- Optitune Oy , Tutkijankuja 5 , FIN-90590 Oulu , Finland
| | | |
Collapse
|
4
|
Intramolecular cyclization in hyperbranched star copolymers via one-pot Am+Bn+C1 step-growth polymerization resulting in decreased cyclic defect. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
5
|
Hao T, Zhou Z, Nie Y. Theoretical Methods of the Size Distribution Function for the Products of Hyperbranched Polymerization. MACROMOL THEOR SIMUL 2020. [DOI: 10.1002/mats.202000039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tongfan Hao
- Institute of Green Chemistry and Chemical Technology School of Chemistry and Chemical Engineering Jiangsu University 301 Xuefu Road Zhenjiang 212013 China
| | - Zhiping Zhou
- Research School of Polymeric Materials School of Materials Science and Engineering Jiangsu University 301 Xuefu Road Zhenjiang 212013 China
| | - Yijing Nie
- Research School of Polymeric Materials School of Materials Science and Engineering Jiangsu University 301 Xuefu Road Zhenjiang 212013 China
| |
Collapse
|
6
|
Chen SQ, He C, Song G, Li L, Li HJ, Haleem A, He WD. Kinetically controlled cyclization in step-growth polymerization of AB2 macromonomer: Role of molar mass of macromonomer. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
7
|
Yang D, Hou Y, Zhuang Q, Liu P, Kong J. Nitrogen-Rich Porous Organic Polyamines for Stabilization of Highly Dispersed Metal Nanoparticles and Catalytic Application. Macromol Rapid Commun 2019; 40:e1900100. [PMID: 31206915 DOI: 10.1002/marc.201900100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 05/20/2019] [Indexed: 12/19/2022]
Abstract
Nitrogen-rich triazine-based porous organic polyamines (POPa) synthesized via a one-step polycondensation of melamine and 4,4',4''-(1,3,5-triazine-2,4,6-triyl)tribenzaldehyde is employed to synthesize Au and Pd nanoparticles well-dispersed on POPa. The as-prepared POPa-supported Au NPs and Pd NPs (AuNPs@POPa, PdNPs@POPa) with a narrow size distribution show remarkable catalytic activity for the reduction of nitrobenzene compounds and organic dyes and the Suzuki-Miyaura coupling reaction, respectively. Benefitting from POPa the AuNPs@POPa and PdNPs@POPa catalysts can be readily recovered and reused almost without loss of activity. The nitrogen-rich porous organic polyamines provide great opportunities to prepare functional metal nanocatalysts with potential in the heterogeneous catalysis field.
Collapse
Affiliation(s)
- Dong Yang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Yinglai Hou
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Qiang Zhuang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Pei Liu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Jie Kong
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| |
Collapse
|
8
|
Schamboeck V, Iedema PD, Kryven I. Dynamic Networks that Drive the Process of Irreversible Step-Growth Polymerization. Sci Rep 2019; 9:2276. [PMID: 30783151 PMCID: PMC6381213 DOI: 10.1038/s41598-018-37942-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 12/18/2018] [Indexed: 11/15/2022] Open
Abstract
Many research fields, reaching from social networks and epidemiology to biology and physics, have experienced great advance from recent developments in random graphs and network theory. In this paper we propose a generic model of step-growth polymerisation as a promising application of the percolation on a directed random graph. This polymerisation process is used to manufacture a broad range of polymeric materials, including: polyesters, polyurethanes, polyamides, and many others. We link features of step-growth polymerisation to the properties of the directed configuration model. In this way, we obtain new analytical expressions describing the polymeric microstructure and compare them to data from experiments and computer simulations. The molecular weight distribution is related to the sizes of connected components, gelation to the emergence of the giant component, and the molecular gyration radii to the Wiener index of these components. A model on this level of generality is instrumental in accelerating the design of new materials and optimizing their properties, as well as it provides a vital link between network science and experimentally observable physics of polymers.
Collapse
Affiliation(s)
- Verena Schamboeck
- University of Amsterdam, Van't Hoff Institute for Molecular Sciences, Amsterdam, 1090 GE, The Netherlands.
| | - Piet D Iedema
- University of Amsterdam, Van't Hoff Institute for Molecular Sciences, Amsterdam, 1090 GE, The Netherlands
| | - Ivan Kryven
- University of Amsterdam, Van't Hoff Institute for Molecular Sciences, Amsterdam, 1090 GE, The Netherlands
| |
Collapse
|
9
|
Silverman JR, Danby AM, Subramaniam B. Intensified ozonolysis of lignins in a spray reactor: insights into product yields and lignin structure. REACT CHEM ENG 2019. [DOI: 10.1039/c9re00098d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A safe and efficient spray ozonolysis to valorize grass and hardwood lignins, selectively yielding aromatic aldehydes without their overoxidation or lignin bleaching.
Collapse
Affiliation(s)
- Julian R. Silverman
- Center for Environmentally Beneficial Catalysis
- University of Kansas
- Lawrence
- USA
| | - Andrew M. Danby
- Center for Environmentally Beneficial Catalysis
- University of Kansas
- Lawrence
- USA
| | - Bala Subramaniam
- Center for Environmentally Beneficial Catalysis
- University of Kansas
- Lawrence
- USA
- Department of Chemical and Petroleum Engineering
| |
Collapse
|
10
|
Ban Q, Sun W, Kong J, Wu S. Hyperbranched Polymers with Controllable Topologies for Drug Delivery. Chem Asian J 2018; 13:3341-3350. [DOI: 10.1002/asia.201800812] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Qingfu Ban
- MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology; School of Science; Northwestern Polytechnical University; Xi'an 710072 China
| | - Wen Sun
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 China
| | - Jie Kong
- MOE Key Laboratory of Materials Physics and Chemistry in Extraordinary Conditions, Shaanxi Key Laboratory of Macromolecular Science and Technology; School of Science; Northwestern Polytechnical University; Xi'an 710072 China
| | - Si Wu
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- CAS Key Laboratory of Soft Matter Chemistry; Department of Polymer Science and Engineering; University of Science and Technology of China; Hefei 230026 China
| |
Collapse
|
11
|
Li X, Liu X, Shi D, Wei W, Chen M, Liu X. Facile Synthesis of Hyperbranched Polymers by Sequential Polycondensation. ACS Macro Lett 2018; 7:778-782. [PMID: 35650767 DOI: 10.1021/acsmacrolett.8b00443] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hyperbranched polymers are an important class of soft nanomaterial, but the synthesis of hyperbranched polymers with well-defined dendritic structure from readily available monomers remains a challenge in polymer chemistry. We herein report a sequential polycondensation method for the one-pot synthesis of hyperbranched polymers with tunable structure and high degree of branching from commercial available monomers. Specifically, in the polycondensation process of equimolar difunctional haloalkane (A2-type monomers) and trifunctional dihydroxybenzoic acid (CB2-type monomers) using K2CO3 as the base, the aliphatic nucleophilic substitution reactivity sequence of the functional groups derived from CB2 monomers is C > second B > first B ≫ original B, thereby producing hyperbranched poly(ester ether)s with high degree of branching (DB > 0.6). Moreover, the surface functionality of the hyperbranched poly(ester ether)s could be facilely tailored by just introducing A-type monofunctional reagents into the one-pot A2 + CB2 polymerization system.
Collapse
Affiliation(s)
- Xiaojie Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu 214122, People’s Republic of China
| | - Xingliang Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu 214122, People’s Republic of China
| | - Dongjian Shi
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu 214122, People’s Republic of China
| | - Wei Wei
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu 214122, People’s Republic of China
| | - Mingqing Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu 214122, People’s Republic of China
| | - Xiaoya Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, No. 1800 Lihu Avenue, Wuxi, Jiangsu 214122, People’s Republic of China
| |
Collapse
|
12
|
Wallis C, Bonhomme M, Fabre JF, Mouloungui Z. Effect of aliphatic chain length on the chemical structures of low molecular weight hyperbranched polyesters. E-POLYMERS 2018. [DOI: 10.1515/epoly-2016-0309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractLow molecular weight hyperbranched (HB) polyesters were synthesized via melt polymerization from trimethylolpropane and three aliphatic dicarboxylic acids, namely, succinic acid (SA), adipic acid (AA) and dodecanedioic acid (DA). The degrees of branching (DBs) ranged between 30% and 75% depending on the monomer ratio. Their DB, cyclic index and terminal index were all determined, indicating that the shorter chain HB polyesters PE-SA and PE-AA showed a greater degree of intramolecular cyclization, compared to the longer aliphatic chains within PE-DA. The HB polyesters form stable colloidal suspensions in buffered aqueous media and were found to be pH responsive. The stability of the colloidal suspensions is enhanced by two factors: (1) increasing the aliphatic chain length and (2) increasing the pH of the solution for the same HB polyester.
Collapse
Affiliation(s)
- Christopher Wallis
- Laboratoire de Chimie Agro-Industrielle, LCA, Université de Toulouse, INRA, Toulouse, France
- LabCom C2R-BioNut (Laboratoire Commun Chimie du Carbone Renouvelable pour la Biofertilisation et la Nutrition des Plantes), LCA and Agro-Nutrition, F-31030 Toulouse, France
| | - Marine Bonhomme
- Laboratoire de Chimie Agro-Industrielle, LCA, Université de Toulouse, INRA, Toulouse, France
- LabCom C2R-BioNut (Laboratoire Commun Chimie du Carbone Renouvelable pour la Biofertilisation et la Nutrition des Plantes), LCA and Agro-Nutrition, F-31030 Toulouse, France
| | - Jean-François Fabre
- Laboratoire de Chimie Agro-Industrielle, LCA, Université de Toulouse, INRA, Toulouse, France
- LabCom C2R-BioNut (Laboratoire Commun Chimie du Carbone Renouvelable pour la Biofertilisation et la Nutrition des Plantes), LCA and Agro-Nutrition, F-31030 Toulouse, France
| | - Zéphirin Mouloungui
- Laboratoire de Chimie Agro-Industrielle, LCA, Université de Toulouse, INRA, Toulouse, France
- LabCom C2R-BioNut (Laboratoire Commun Chimie du Carbone Renouvelable pour la Biofertilisation et la Nutrition des Plantes), LCA and Agro-Nutrition, F-31030 Toulouse, France
| |
Collapse
|
13
|
Xu D, Ni CY, Zhu YL, Lu ZY, Xue YH, Liu H. Kinetic step-growth polymerization: A dissipative particle dynamics simulation study. J Chem Phys 2018; 148:024901. [DOI: 10.1063/1.4999050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Dan Xu
- Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China
| | - Chun-Yan Ni
- Department of Anesthesiology, Cancer Hospital of Jilin Province, Huguang Road, No. 1018, Changchun 130012, China
| | - You-Liang Zhu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zhong-Yuan Lu
- State Key Laboratory of Supramolecular Structure and Materials, Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130021, China
| | - Yao-Hong Xue
- School of Computer Science and Technology, Changchun University of Science and Technology, Changchun 130022, China
| | - Hong Liu
- State Key Laboratory of Supramolecular Structure and Materials, Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130021, China
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität, Darmstadt 64287, Germany
| |
Collapse
|
14
|
Ban Q, Chen H, Yan Y, Tian N, Kong J. Tunable intramolecular cyclization and glass transition temperature of hyperbranched polymers by regulating monomer reactivity. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.09.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
15
|
Abd-El-Aziz AS, Agatemor C, Etkin N, Bissessur R. Tunable room-temperature soft ferromagnetism in magnetoceramics of organometallic dendrimers. JOURNAL OF MATERIALS CHEMISTRY C 2017; 5:2268-2281. [DOI: 10.1039/c7tc00105c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
This article represents an introduction of new dendrimeric precursors to magnetic ceramics, and homometallic and heterometallic dendrimers with tunable magnetic properties.
Collapse
Affiliation(s)
- Alaa S. Abd-El-Aziz
- Department of Chemistry
- University of Prince Edward Island
- Charlottetown
- Canada
| | - Christian Agatemor
- Department of Chemistry
- University of Prince Edward Island
- Charlottetown
- Canada
| | - Nola Etkin
- Department of Chemistry
- University of Prince Edward Island
- Charlottetown
- Canada
| | - Rabin Bissessur
- Department of Chemistry
- University of Prince Edward Island
- Charlottetown
- Canada
| |
Collapse
|
16
|
The Synergy of Double Cross-linking Agents on the Properties of Styrene Butadiene Rubber Foams. Sci Rep 2016; 6:36931. [PMID: 27841307 PMCID: PMC5107997 DOI: 10.1038/srep36931] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 10/21/2016] [Indexed: 11/28/2022] Open
Abstract
Sulfur (S) cross-linking styrene butadiene rubber (SBR) foams show high shrinkage due to the cure reversion, leading to reduced yield and increased processing cost. In this paper, double cross-linking system by S and dicumyl peroxide (DCP) was used to decrease the shrinkage of SBR foams. Most importantly, the synergy of double cross-linking agents was reported for the first time to our knowledge. The cell size and its distribution of SBR foams were investigated by FESEM images, which show the effect of DCP content on the cell structure of the SBR foams. The relationships between shrinkage and crystalline of SBR foams were analyzed by the synergy of double cross-linking agents, which were demonstrated by FTIR, Raman spectra, XRD, DSC and TGA. When the DCP content was 0.6 phr, the SBR foams exhibit excellent physical and mechanical properties such as low density (0.223 g/cm3), reduced shrinkage (2.25%) and compression set (10.96%), as well as elevated elongation at break (1.78 × 103%) and tear strength (54.63 N/mm). The results show that these properties are related to the double cross-linking system of SBR foams. Moreover, the double cross-linking SBR foams present high electromagnetic interference (EMI) shielding properties compared with the S cross-linking SBR foams.
Collapse
|
17
|
Cao X, Shi Y, Gan W, Naguib H, Wang X, Graff RW, Gao H. Effect of Monomer Structure on the CuAAC Polymerization To Produce Hyperbranched Polymers. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01426] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaosong Cao
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Yi Shi
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Weiping Gan
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Hannah Naguib
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Xiaofeng Wang
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Robert W. Graff
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Haifeng Gao
- Department of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| |
Collapse
|
18
|
Chen H, Kong J. Hyperbranched polymers from A2 + B3 strategy: recent advances in description and control of fine topology. Polym Chem 2016. [DOI: 10.1039/c6py00409a] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent advances in the fine topology regulation of hyperbranched polymers from an A2 + B3 strategy were presented from the perspectives of topology description and architecture control.
Collapse
Affiliation(s)
- Heng Chen
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Jie Kong
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| |
Collapse
|
19
|
Shi Y, Cao X, Zou L, Gan W, Gao H. Preparation of water-soluble hyperbranched polymers with tunable thermosensitivity using chain-growth CuAAC copolymerization. Polym Chem 2016. [DOI: 10.1039/c6py01712f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Thermoresponsive hyperbranched polymers with dangling oligo(ethylene oxide) chain on every monomer unit were constructed using the chain-growth copper-catalyzed azide–alkyne cycloaddition (CuAAC) copolymerization of two AB2-F monomers.
Collapse
Affiliation(s)
- Yi Shi
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Xiaosong Cao
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Lei Zou
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Weiping Gan
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Haifeng Gao
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| |
Collapse
|
20
|
Zou L, Shi Y, Cao X, Gan W, Wang X, Graff RW, Hu D, Gao H. Synthesis of acid-degradable hyperbranched polymers by chain-growth CuAAC polymerization of an AB3 monomer. Polym Chem 2016. [DOI: 10.1039/c6py01265e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first synthesis of acid-degradable hyperbranched polymers using chain-growth CuAAC click polymerization of an AB3 monomer.
Collapse
Affiliation(s)
- Lei Zou
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Yi Shi
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Xiaosong Cao
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Weiping Gan
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Xiaofeng Wang
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Robert W. Graff
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Daqiao Hu
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Haifeng Gao
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| |
Collapse
|
21
|
Zhang S, Chen H, Kong J. Disulfide bonds-containing amphiphilic conetworks with tunable reductive-cleavage. RSC Adv 2016. [DOI: 10.1039/c6ra02824a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The disulfide bonds-containing amphiphilic conetworks were presented with tunable reduction-cleavage via click reaction of azide terminated poly(ε-caprolactone) and alkyne-terminated polyethylene glycol.
Collapse
Affiliation(s)
- Shan Zhang
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
- P. R. China
| | - Heng Chen
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
- P. R. China
| | - Jie Kong
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
- P. R. China
| |
Collapse
|
22
|
Yang D, Kong J. 100% hyperbranched polymers via the acid-catalyzed Friedel–Crafts aromatic substitution reaction. Polym Chem 2016. [DOI: 10.1039/c6py01168c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient and benign strategy to synthesize hyperbranched polymers with a degree of branching of 100% was presented via the Friedel–Crafts reaction.
Collapse
Affiliation(s)
- Dong Yang
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Jie Kong
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| |
Collapse
|
23
|
Ban Q, Kong J. Intramolecular cyclization of long-chain hyperbranched polymers (HyperMacs) from A2 + Bn step-wise polymerization. Polym Chem 2016. [DOI: 10.1039/c6py00986g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We presented a precise topological analysis on intramolecular cyclization for long-chain hyperbranched polymers via the new parameter of the macro-cyclic index (m-CI).
Collapse
Affiliation(s)
- Qingfu Ban
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Jie Kong
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| |
Collapse
|
24
|
Liu Z, Yuan L, Liang G, Gu A. Tough epoxy/cyanate ester resins with improved thermal stability, lower dielectric constant and loss based on unique hyperbranched polysiloxane liquid crystalline. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3590] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Zhen Liu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Materials Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Li Yuan
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Materials Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Guozheng Liang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Materials Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Aijuan Gu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Materials Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| |
Collapse
|
25
|
Chen H, Jia J, Duan X, Yang Z, Kong J. Reduction-cleavable hyperbranched polymers with limited intramolecular cyclization via click chemistry. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27694] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Heng Chen
- MOE Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| | - Jiqiong Jia
- MOE Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| | - Xiao Duan
- MOE Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| | - Zhen Yang
- MOE Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| | - Jie Kong
- MOE Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| |
Collapse
|
26
|
Tan ZW, Sun J, Zhang M, Qiu JJ, Hu SQ, Liu CM. Phosphorus-containing polymers from THPS. II: synthesis and property of phosphorus-containing hyperbranched aromatic-aliphatic polyamides. Des Monomers Polym 2015. [DOI: 10.1080/15685551.2014.999461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Zhi-Wei Tan
- School of Chemistry and Chemical Engineering, Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, China
- School of Chemistry and Environmental Engineering, Hubei University for Nationalities, Enshi 445000, China
| | - Jian Sun
- School of Chemistry and Chemical Engineering, Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Min Zhang
- School of Chemistry and Chemical Engineering, Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jin-Jun Qiu
- School of Chemistry and Chemical Engineering, Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Si-Qian Hu
- School of Chemistry and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Cheng-Mei Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, China
| |
Collapse
|
27
|
Kong J, Wang M, Zou J, An L. Soluble and meltable hyperbranched polyborosilazanes toward high-temperature stable SiBCN ceramics. ACS APPLIED MATERIALS & INTERFACES 2015; 7:6733-6744. [PMID: 25775397 DOI: 10.1021/am509129a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
High-temperature stable siliconborocarbonitride (SiBCN) ceramics produced from single-source preceramic polymers have received increased attention in the last two decades. In this contribution, soluble and meltable polyborosilazanes with hyperbranched topology (hb-PBSZ) were synthesized via a convenient solvent-free, catalyst-free and one-pot A2 + B6 strategy, an aminolysis reaction of the A2 monomer of dichloromethylsilane and the B6 monomer of tris(dichloromethylsilylethyl)borane in the presence of hexamethyldisilazane. The amine transition reaction between the intermediates of dichlorotetramethyldisilazane and tri(trimethylsilylmethylchlorosilylethyl)borane led to the formation of dendritic units of aminedialkylborons rather than trialkylborons. The cross-linked hb-PBSZ precursors exhibited a ceramic yield higher 80%. The resultant SiBCN ceramics with a boron atomic composition of 6.0-8.5% and a representative formula of Si1B(0.19)C(1.21)N(0.39)O(0.08) showed high-temperature stability and retained their amorphous structure up to 1600 °C. These hyperbranched polyborosilazanes with soluble and meltable characteristics provide a new perspective for the design of preceramic polymers possessing advantages for high-temperature stable polymer-derived ceramics with complex structures/shapes.
Collapse
Affiliation(s)
- Jie Kong
- †MOE Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Minjun Wang
- †MOE Key Laboratory of Space Applied Physics and Chemistry, Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Science, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Jianhua Zou
- ‡Department of Materials Science and Engineering, Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816, United States
| | - Linan An
- ‡Department of Materials Science and Engineering, Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, Florida 32816, United States
| |
Collapse
|
28
|
Chen H, Zhang S, Kong J. Topological analysis and intramolecular cyclic feature evaluation of polymers derived from Am + Bn step-growth polymerization. Polym Chem 2015. [DOI: 10.1039/c4py01693a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We presented new and convenient evaluation strategies for intramolecular cyclic features of polymers derived from Am + Bn step-growth polymerization.
Collapse
Affiliation(s)
- Heng Chen
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Shan Zhang
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| | - Jie Kong
- MOE Key Laboratory of Space Applied Physics and Chemistry
- Shaanxi Key Laboratory of Macromolecular Science and Technology
- School of Science
- Northwestern Polytechnical University
- Xi'an
| |
Collapse
|