1
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Aresta M. The Contribution of CIRCC Partners to the Birth and Growth of CO
2
Chemistry. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Michele Aresta
- Consorzio Interuniversitario Reattività Chimica e Catalisi-CIRCC and Innovative Catalysis for Carbon Recycling-IC2R, JL-CCE Via Celso Ulpiani 27 70126 Bari
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2
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Reactive Extrusion Grafting of Glycidyl Methacrylate onto Low-Density and Recycled Polyethylene Using Supercritical Carbon Dioxide. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12063022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Glycidyl methacrylate (GMA) was grafted onto (recycled) polyethylene (PE) to design a new adhesive with better mechanical properties compared to non-grafted PE. The effects of the amount of GMA, the amount of dicumyl peroxide (DCP) and the use of supercritical carbon dioxide (scCO2) in a reactive extrusion (REX) were evaluated based on the grafting degree and efficiency of the grafted samples. Generally speaking, higher amounts of GMA led to higher functionalization degrees (FD), whereas higher amounts of DCP resulted in a lower FD due to the occurrence of more unfavorable side reactions. The influence of scCO2 showed different outcomes for the two substrates used. Higher FDs were obtained for the low-density polyethylene (LDPE) samples while, by contrast, lower FDs were obtained for the recycled polyethylene (RPE) samples when using scCO2. Additionally, adjusting the screw speed and the temperature profile of the extruder to the half-life time of the radical initiator appeared to have the highest positive impact on the FD. According to the tensile tests, all the grafted samples can withstand higher stress levels, especially the grafted RPE, compared to the non-grafted samples.
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3
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Song M, Luo W, Feng S, Jiang W, Ge Y, Liu T. Effect of viscoelasticity on the foaming behaviour of long-chain branched polypropylene with different branching degrees analysed by using bubble-growth modelling. POLYMER 2022. [DOI: 10.1016/j.polymer.2021.124397] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Jiang W, Feng L, Gu X, Duan J, Zhang C. Microwave-Induced Grafting of Maleic Anhydride onto the Surface of a Polypropylene Film for High Adhesion to Polyamide 6. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wenxin Jiang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lianfang Feng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Institute of Zhejiang University−Quzhou, 78 Jiuhua North Boulevard, Quzhou 324000, China
| | - Xueping Gu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Institute of Zhejiang University−Quzhou, 78 Jiuhua North Boulevard, Quzhou 324000, China
| | - Jintang Duan
- Institute of Zhejiang University−Quzhou, 78 Jiuhua North Boulevard, Quzhou 324000, China
| | - Cailiang Zhang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Institute of Zhejiang University−Quzhou, 78 Jiuhua North Boulevard, Quzhou 324000, China
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5
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Reactive Extrusion of Maleic-Anhydride-Grafted Polypropylene by Torque Rheometer and Its Application as Compatibilizer. Polymers (Basel) 2021; 13:polym13040495. [PMID: 33562477 PMCID: PMC7915049 DOI: 10.3390/polym13040495] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/08/2020] [Accepted: 09/14/2020] [Indexed: 11/16/2022] Open
Abstract
This study is based upon the functionalization of polypropylene (PP) by radical polymerization to optimize its properties by influencing its molecular weight. Grafting of PP was done at different concentrations of maleic anhydride (MAH) and benzoyl peroxide (BPO). The effect on viscosity during and after the reaction was studied by torque rheometer and melt flow index. Results showed that a higher concentration of BPO led to excessive side-chain reactions. At a high percentage of grafting, lower molecular weight product was produced, which was analyzed by viscosity change during and after the reaction. Percentage crystallinity increased by grafting due to the shorter chains, which consequently led to an improvement in the chain's packing. Prepared Maleic anhydride grafted polypropylene (MAH-g-PP) enhanced interactions in PP-PET blends caused a partially homogeneous blend with less voids.
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6
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Wang D, Wang J, He S, Yan Y, Zhang J, Dong J. Efficient approach to produce functional polypropylene via solvent assisted solid-phase free radical grafting of multi-monomers. APPLIED PETROCHEMICAL RESEARCH 2021. [DOI: 10.1007/s13203-020-00261-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
AbstractHerein an efficient approach to produce functional polypropylene via solvent assisted solid-phase grafting process is reported, in which acrylic acid, methyl methacrylate and maleic anhydride are used as multi-monomers, 2,2′-azobis(2-methylpropionitrile) as initiator and ether as swelling solvent and carrier. The effects of various factors such as the swelling solvent species and dosage, swelling time and temperature, monomer and initiator concentrations, reaction time and temperature, nitrogen flow rate and the stirring speed on the grafting percentage and grafting efficiency were investigated. To verify the polar species was grafted onto polypropylene, the resulted polymers were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction analysis, water contact angle measurement, tensile strength and melt flow rate measurement. All the results showed that using the ether assisted solid-phase free radical grafting process is an efficient and versatile approach to produce functional polypropylene.
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7
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Li Y, Yao Z, Qiu S, Zeng C, Cao K. Influence of molecular structure on the rheological properties and foamability of long chain branched polypropylene by “one-pot” reactive extrusion. J CELL PLAST 2020. [DOI: 10.1177/0021955x20943108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this work, reactive twin screw extrusion was conducted to synthesize long chain branched polypropylenes (LCB-PPs) in a “one-pot” process in which dicumyl peroxide (DCP) initiated maleic anhydride (MAH) grafting onto the linear PP, and the concomitant coupling reaction between ethylene diamine (EDA) and MAH grafted polypropylene (PP-g-MAH) proceeded in series. Fourier transfer infrared spectroscopy (FTIR) on the prepared materials confirmed the occurrence of both reactions. A series of LCB-PPs were prepared using different amounts of EDA, MAH and DCP to study their effects and determine the optimal synthesis conditions. The prepared materials were characterized by size exclusion chromatography (SEC) and rheological analysis to ascertain the polymer microstructure. The foamability of the LCB-PPs by supercritical carbon dioxide (scCO2) foaming and foam morphology were investigated. The LCB-PPs were found to have vastly improved foamability and cellular morphology. Under optimal conditions, a foam expansion ratio of over 20 was achieved.
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Affiliation(s)
- Yan Li
- Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, PR China
- High Performance Materials Institute, Florida State University, Tallahassee, FL, USA
- Department of Industrial and Manufacturing Engineering, FAMU-FSU College of Engineering, Tallahassee, FL, USA
| | - Zhen Yao
- Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, PR China
| | - Shaolong Qiu
- Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, PR China
| | - Changchun Zeng
- High Performance Materials Institute, Florida State University, Tallahassee, FL, USA
- Department of Industrial and Manufacturing Engineering, FAMU-FSU College of Engineering, Tallahassee, FL, USA
| | - Kun Cao
- Institute of Polymerization and Polymer Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, PR China
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, PR China
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8
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Aguilar-Bolados H, Quijada R, Yazdani-Pedram M, Maldonado-Magnere S, Verdejo R, Lopez-Manchado MA. SEBS-Grafted Itaconic Acid as Compatibilizer for Elastomer Nanocomposites Based on BaTiO 3 Particles. Polymers (Basel) 2020; 12:polym12030643. [PMID: 32178247 PMCID: PMC7183045 DOI: 10.3390/polym12030643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 11/17/2022] Open
Abstract
Itaconic acid (IA) is an organic acid produced by the fermentation of sugars with aspergillus. It has been identified as one of the top 12 building-block chemicals. Here, we report the use of IA as a possible substitute to petroleum-based compatibilizers in polymer composite. We applied this study to thermoplastic elastomers based on styrene copolymers, since they are commonly used in blends and composites. Poly(styrene-b-ethylene-butylene-b-styrene) (SEBS) was grafted with 2.6 wt.% of itaconic acid (SEBS-g-IA) prepared by a reactive melt-mixing process, and was subsequently used to prepare composites filled with BaTiO3.). IA was successfully grafted as demonstrated by FTIR and XRD. SEBS-g-IA composites presented better mechanical properties, achieving an increase of Young modulus up to 80% compared with the neat polymer. This was ascribed to better dispersion and compatibility with the filler. Additionally, SEBS-g-IA showed increased dielectric permittivity, i.e., showed increased polarity, which indicates that it could potentially be used as a modifier for specialized polymers.
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Affiliation(s)
- Héctor Aguilar-Bolados
- Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago 8370456, Chile;
- Correspondence: ; Tel.: +56-2-2978-2855
| | - Raúl Quijada
- Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago 8370456, Chile;
| | - Mehrdad Yazdani-Pedram
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos 1007, Santiago 8380544, Chile; (M.Y.-P.); (S.M.-M.)
| | - Santiago Maldonado-Magnere
- Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Olivos 1007, Santiago 8380544, Chile; (M.Y.-P.); (S.M.-M.)
| | - Raquel Verdejo
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva, 3 28006 Madrid, Spain; (R.V.); (M.A.L.-M.)
| | - Miguel A. Lopez-Manchado
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Juan de la Cierva, 3 28006 Madrid, Spain; (R.V.); (M.A.L.-M.)
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9
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Wang DW, Sun LS, Peng XL, Runt J, Kuo MC, Huang KS, Yeh JT. Tapioca/polyvinyl alcohol thermoplastic starch materials processed with the aid of supercritical CO2. Food Packag Shelf Life 2019. [DOI: 10.1016/j.fpsl.2019.100425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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10
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Lei T, Huang K, Kuo M, Runt J, Yeh J. Utilization of supercritical CO
2
as a processing aid for preparation of ultrahigh molecular weight polyethylene/functionalized activated nanocarbon fibers. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25145] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ting Lei
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering, Hubei University Wuhan China
| | - Kuo‐Shien Huang
- Department of Materials EngineeringKun Shan University Tainan Taiwan
| | - Mu‐Chen Kuo
- Department of Materials EngineeringKun Shan University Tainan Taiwan
| | - James Runt
- Department of Materials Science and EngineeringPenn State University University Park Pennsylvania
| | - Jen‐Taut Yeh
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education, Key Laboratory for the Green Preparation and Application of Functional MaterialsHubei Key Laboratory of Polymeric Materials, Faculty of Materials Science and Engineering, Hubei University Wuhan China
- Department of Materials EngineeringKun Shan University Tainan Taiwan
- Department of Materials Science and EngineeringPenn State University University Park Pennsylvania
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11
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Wang S, Zhang X, Jiang C, Jiang H, Tang Y, Li J, Ren M, Qiao J. Polymer Solid-Phase Grafting at Temperature Higher than the Polymer Melting Point through Selective Heating. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02737] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Songhe Wang
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Xiaohong Zhang
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Chao Jiang
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Haibin Jiang
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Yujing Tang
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Juan Li
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Minqiao Ren
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Jinliang Qiao
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
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12
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Structural engineering to control density, conformation, and bioactivity of the poly(ethylene glycol)-grafted poly(urethane urea) scaffolds. J BIOACT COMPAT POL 2018. [DOI: 10.1177/0883911518819224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Poly(urethane urea) scaffolds were fabricated through combined salt leaching and solvent casting methods. The scaffolds were then functionalized via aminolysis with poly(ethylene glycol) (PEG- g-PUU). To compare its bioactivity, gelatin was also grafted onto the aminolyzed poly(urethane urea) surface (Gel- g-PUU). Chemical changes at the surface were then monitored using quantitative/qualitative methods. Grafting with both gelatin and poly(ethylene glycol) remarkably enhanced the wettability of poly(urethane urea). Proliferation of human adipose–derived mesenchymal stem cells on poly(urethane urea) and the modified poly(urethane urea)s was evaluated by 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide assay. The cell experiment results showed that both the modified poly(urethane urea)s enhanced the attachment and proliferation of human adipose–derived mesenchymal stem cells compared to pure poly(urethane urea). Based on previous reports, while a supportive role is observed at adequate poly(ethylene glycol) graft densities, cell adhesion and proliferation are inhibited at very high grafting densities. To correlate the cell data to poly(ethylene glycol) conformations, the surface tension was measured. Data on human adipose–derived mesenchymal stem cells’ attachment/proliferation and contact angle/surface free energy together showed that the grafting density of poly(ethylene glycol) was regulated by optimizing aminolysis conditions, careful selection of poly(ethylene glycol)’s molecular weight, and bulk properties of the matrix poly(urethane urea). As a result, surface overcrowding and brush conformation of the poly(ethylene glycol) chains were avoided, and human adipose–derived mesenchymal stem cell attachment and proliferation occurred on the PEG- g-PUU scaffold at a comparable level to the Gel- g-PUU.
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13
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Wang D, Wang J. Grafting dual polar monomers onto hydroperoxidized polypropylene with the assistant of supercritical carbon dioxide. APPLIED PETROCHEMICAL RESEARCH 2017. [DOI: 10.1007/s13203-017-0190-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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14
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Javan Nikkhah S, Moghbeli MR, Hashemianzadeh SM. A molecular simulation study on the adhesion behavior of a functionalized polyethylene-functionalized graphene interface. Phys Chem Chem Phys 2015; 17:27414-27. [PMID: 26422812 DOI: 10.1039/c5cp04699h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Molecular dynamics simulations were applied to investigate interfacial adhesion between functionalized polyethylene (fPE) and functionalized graphene (fG) surfaces. In order to functionalize the PE and graphene surfaces, various types of functional groups were covalently bonded on the surfaces in a random manner. Adhesion between fPE and fG surfaces was evaluated by the calculation of work of separation (Wsep), while the interfaces were not allowed to relax. According to the simulation results, the combination of the atomic roughness effect and the electronic properties of the functional groups had influence on the adhesion between PE and graphene. The effect of surface reorganization was also investigated by devoting sufficient time for relaxation of the interface. The adhesion in the relaxed interfaces was evaluated via the work of adhesion (Wadh). Relaxation of the interface caused to decrease the atomic roughness of the PE surface, which enhanced adhesion in all of the systems compared to their unrelaxed models. In addition to surface flattening, relaxation also brought about an increase in the atomic density at the interface, which led to enhance the van der Waals interaction and increase interfacial adhesion.
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Affiliation(s)
- Sousa Javan Nikkhah
- School of Chemical Engineering, Iran University of Science and Technology (IUST), P.O. Box 16844-13114, Tehran, Iran
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15
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Yilu Z, Zhifang G, Liming Z, Lisha P, Zheng T, Sujuan P, Nai X, Qiang L. Mechanochemistry: a novel approach to graft polypropylene with dual monomers (PP-g-(MAH-co-St)). Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1382-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Monsiváis-Barrón AJ, Bonilla-Rios J, Sánchez-Fernández A. Property Relationship in Organosilanes and Nanotubes Filled Polypropylene Hybrid Composites. MATERIALS (BASEL, SWITZERLAND) 2014; 7:7073-7092. [PMID: 28788233 PMCID: PMC5456017 DOI: 10.3390/ma7107073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 09/05/2014] [Accepted: 10/09/2014] [Indexed: 11/29/2022]
Abstract
Polypropylene composites with different filler contents were prepared by creating a masterbatch containing 3 wt%. filler. A variety of silanol groups were used to synthetized three compounds in different media trough a sol-gel process with acetic acid, formic acid and ammonium hydroxide as catalysts. Besides, four different nanotubular fillers were also used to analyze their behavior and compare it with the effect caused by the silanol groups. These tubular structures comprise: unmodified halloysite, carbon nanotubes and functionalized halloysite and carbon nanotubes. Morphological characterization in SEM and STEM/TEM showed dispersion in the polypropylene matrix. According to TGA and DSC measurements thermal behavior remain similar for all the composites. Mechanical test in tension demonstrate that modulus of the composites increases for all samples with a major impact for materials containing silanol groups synthetized in formic acid. Rheological measurements show a significantly increment in viscosity for samples containing unmodified and modified carbon nanotubes. No difference was found for samples containing silanol groups and halloysite when compared to neat polypropylene. Finally, the oxygen transmission rate increased for all samples showing high barrier properties only for samples containing natural and functionalized halloysite nanotubes.
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Affiliation(s)
| | - Jaime Bonilla-Rios
- Tecnológico de Monterrey Av. Eugenio Garza Sada Sur 2501, Tecnológico, 64849 Monterrey, Nuevo León, Mexico.
| | - Antonio Sánchez-Fernández
- Tecnológico de Monterrey Av. Eugenio Garza Sada Sur 2501, Tecnológico, 64849 Monterrey, Nuevo León, Mexico.
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17
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Lanzalaco S, Scialdone O, Galia A. Effect of interfacial area on heterogeneous free radical grafting of vinyl monomers in supercritical carbon dioxide: Grafting of acrylic acid on poly(vinylidenefluoride) nanoparticles. J Appl Polym Sci 2014. [DOI: 10.1002/app.41541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sonia Lanzalaco
- Dipartimento Ingegneria Chimica Gestionale Informatica Meccanica; Università di Palermo; Viale delle Scienze Ed.6 90128 Palermo Italy
| | - Onofrio Scialdone
- Dipartimento Ingegneria Chimica Gestionale Informatica Meccanica; Università di Palermo; Viale delle Scienze Ed.6 90128 Palermo Italy
| | - Alessandro Galia
- Dipartimento Ingegneria Chimica Gestionale Informatica Meccanica; Università di Palermo; Viale delle Scienze Ed.6 90128 Palermo Italy
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18
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Cao L, Wang X, Wang G, Wang J. A pH-sensitive porous chitosan membrane prepared via surface grafting copolymerization in supercritical carbon dioxide. POLYM INT 2014. [DOI: 10.1002/pi.4798] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Liqin Cao
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 PR China
| | - Xiaohu Wang
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 PR China
| | - Gang Wang
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 PR China
| | - Jide Wang
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 PR China
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19
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Hou M, Cao L, Wang J, Lin J, Zhao M, Wang G. Grafting of hydroxymethylacrylamide and acrylic acid copolymer onto polyvinylidene fluoride membrane by supercritical carbon dioxide and its application in dye separation. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3272] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Minna Hou
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 P.R. China
| | - Liqin Cao
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 P.R. China
| | - Jide Wang
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 P.R. China
| | - Jiangli Lin
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 P.R. China
| | - Mengqi Zhao
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 P.R. China
| | - Gang Wang
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region; Xinjiang University; Urumqi 830046 P.R. China
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20
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Diop MF, Torkelson JM. Maleic anhydride functionalization of polypropylene with suppressed molecular weight reduction via solid-state shear pulverization. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.06.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Li Q, Tzoganakis C. Functionalization of PP with Sulfonyl Azide through Reactive Processing. INT POLYM PROC 2013. [DOI: 10.3139/217.2039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The functionalization of polypropylene (PP) by 4-carboxybenzene sulfonyl azide (CBSA) was investigated in a batch mixer and the reaction was monitored through FTIR, 1H-NMR and XPS spectroscopy. The degree of grafting was found to increase initially with azide feed content and subsequently to level off at azide concentrations of 2 wt.%. Experiments performed at different reaction temperatures showed that a maximum degree of grafting was obtained around 190°C. The linear viscoelastic properties the functionalized PPs were also evaluated by oscillatory shear measurements and were found to correlate with the grafting degree results. Finally, the adhesive properties of the functionalized PPs were evaluated through peel tests on aluminum substrates. The peel strength increased with the degree of grafting and it was found to be significantly higher for purified samples than for non-purified ones. Finally, it was demonstrated that the cooling rate of the PP/aluminum laminate specimens had a major effect on the peel strength.
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Affiliation(s)
- Q. Li
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - C. Tzoganakis
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
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23
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Ferro L, Scialdone O, Galia A. Preparation of pH sensitive poly(vinilydenefluoride) porous membranes by grafting of acrylic acid assisted by supercritical carbon dioxide. J Supercrit Fluids 2012. [DOI: 10.1016/j.supflu.2011.09.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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24
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Luo W, Liu X, Fu Y. Melt grafting of maleic anhydride onto polypropylene with assistance of α-methylstyrene. POLYM ENG SCI 2011. [DOI: 10.1002/pen.22147] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang S, Meng L, Wang N, Zhao J, Feng Y. Preparation and Properties of Chlorinated Polyethylene-Chlorinating/Grafting-Poly (Acrylic acid) and its Sodium-Salt Ionomer. J MACROMOL SCI B 2011. [DOI: 10.1080/00222348.2011.629866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Shuangshuang Wang
- a Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics , Qingdao University of Science & Technology , Qingdao , People's Republic of China
| | - Li Meng
- a Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics , Qingdao University of Science & Technology , Qingdao , People's Republic of China
| | - Na Wang
- a Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics , Qingdao University of Science & Technology , Qingdao , People's Republic of China
| | - Jiruo Zhao
- a Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics , Qingdao University of Science & Technology , Qingdao , People's Republic of China
| | - Ying Feng
- a Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics , Qingdao University of Science & Technology , Qingdao , People's Republic of China
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Zhang RH, Li XK, Cao GP, Shi YH, Liu HL, Yuan WK, Roberts GW. Improved Kinetic Model of Crystallization for Isotactic Polypropylene Induced by Supercritical CO2: Introducing Pressure and Temperature Dependence into the Avrami Equation. Ind Eng Chem Res 2011. [DOI: 10.1021/ie101638b] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ren-Han Zhang
- UNILAB, State Key Lab of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xue-Kun Li
- UNILAB, State Key Lab of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Gui-Ping Cao
- UNILAB, State Key Lab of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yun-Hai Shi
- UNILAB, State Key Lab of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Hong-Lai Liu
- UNILAB, State Key Lab of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wei-Kang Yuan
- UNILAB, State Key Lab of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - George W. Roberts
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Box 7905, Raleigh, North Carolina 27695-7905, United States
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Multi functionalization of polypropylene with controlled degradation and its structure characterization. Macromol Res 2011. [DOI: 10.1007/s13233-011-0907-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Zhao Y, Ma Y, Yao W, Huang B. Styrene-assisted grafting of maleic anhydride onto isotactic poly butene-1. POLYM ENG SCI 2011. [DOI: 10.1002/pen.22032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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Ultrasonic induced grafting of maleic anhydride onto polypropylene in melt state. JOURNAL OF POLYMER RESEARCH 2011. [DOI: 10.1007/s10965-011-9611-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Wang SS, Zhao ZQ, Wang N, Zhao JR, Feng Y. Structure and mechanism of functional isotactic polypropylene via in situ
chlorination graft copolymerization. POLYM INT 2011. [DOI: 10.1002/pi.3044] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Cao K, Shen ZC, Yao Z, Qu BW, Pang XB, Lu ZQ, Li Y, Chen ZH. New insight into the action of supercritical carbon dioxide for grafting of maleic anhydride onto isotactic polypropylene by reactive extrusion. Chem Eng Sci 2010. [DOI: 10.1016/j.ces.2009.11.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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In situ chlorinating-graft copolymerization on isotactic polypropylene in gas–solid phase. Polym Bull (Berl) 2009. [DOI: 10.1007/s00289-009-0091-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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Gang-sheng T, Liu T, Zhao L, Li-xia H, Wei-kang Y. Supercritical carbon dioxide-assisted preparation of polypropylene grafted acrylic acid with high grafted content and small gel percent. J Supercrit Fluids 2009. [DOI: 10.1016/j.supflu.2008.11.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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34
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Song P, Shen Y, Du B, Peng M, Shen L, Fang Z. Effects of reactive compatibilization on the morphological, thermal, mechanical, and rheological properties of intumescent flame-retardant polypropylene. ACS APPLIED MATERIALS & INTERFACES 2009; 1:452-459. [PMID: 20353236 DOI: 10.1021/am8001204] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Flame-retardant polypropylene (PP) samples were in situ compatibilized with maleic anhydride grafted PP. Compatibilization reaction was verified by an IR spectrum and gel content measurements. Electron microscopy images showed that compatibilization could considerably reduce the size of the flame-retardant domains, control the phase morphology, and improve the interfacial adhesion between PP and intumescent flame retardant (IFR) with different IFR loading levels. The limiting oxygen index (LOI) of flame-retardant PP increased to different extents after compatibilization, indicating an improvement in the flame retardancy. Compatibilization enhanced the thermal stability to some extent and remarkably delayed thermal oxidative degradation of flame-retardant PP. For PP containing 20 wt % flame retardant, the temperature at which the maximum weight loss rate occurred was enhanced by about 99 degrees C after compatibilization. The storage modulus and glass transition temperatures were elevated to different extents. Tensile strengths of samples reduced in the presence of flame retardant alone but in the additional presence of compatibilizer were restored to levels similar to those of pure PP. Elongation-at-break values, however, showed IFR concentration-dependent reductions that were less for compatibilized samples. Furthermore, the complex viscosity of a compatibilized PP melt turned slightly smaller, which is favorable to melt processing.
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Affiliation(s)
- Pingan Song
- Institute of Polymer Composites, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University, Hangzhou, China
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COPOLYMERIZATION OF ETHYLENE WITH <I>ω</I>-p-METHYLPENYL-α-OLEFINUSING ET(IND)<SUB>2</SUB>ZrCl<SUB>2</SUB>/MAO AS A CATALYST. ACTA POLYM SIN 2008. [DOI: 10.3724/sp.j.1105.2008.00371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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36
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Rao H, Zhang Z. Graft copolymerization of maleic anhydride/styrene onto isotactic polypropylene using supercritical CO2. POLYM ADVAN TECHNOL 2008. [DOI: 10.1002/pat.1032] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Bulk graft modification of polyolefin membranes by combining pre-irradiation-induced graft and supercritical CO2-swelling polymerization. J Supercrit Fluids 2008. [DOI: 10.1016/j.supflu.2007.09.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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38
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Zhang S, Cao L, Shao F, Chen L, Jiao J, Gao W. Grafting of methyl methacrylate onto natural rubber in supercritical carbon dioxide. POLYM ADVAN TECHNOL 2008. [DOI: 10.1002/pat.971] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Wang J, Xu Y, Xu H, Zhang F, Qian Y, Zhu B. Synthesis of an amphiphilic glucose-carrying graft copolymer and its use for membrane surface modification. J Appl Polym Sci 2008. [DOI: 10.1002/app.28400] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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41
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Tong GS, Liu T, Hu GH, Zhao L, Yuan WK. Supercritical carbon dioxide-assisted solid-state free radical grafting of methyl methacrylate onto polypropylene. J Supercrit Fluids 2007. [DOI: 10.1016/j.supflu.2007.03.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Shi D, Hu GH, Li R. Concept of nano-reactor for the control of the selectivity of the free radical grafting of maleic anhydride onto polypropylene in the melt. Chem Eng Sci 2006. [DOI: 10.1016/j.ces.2005.12.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Hou Z, Xu Q, Peng Q, Li J, Fan H, Zheng S. Different factors in the supercritical CO2-assisted grafting of poly(acrylic acid) to polypropylene. J Appl Polym Sci 2006. [DOI: 10.1002/app.23857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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45
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Shi D, Li RKY, Zhu Y, Ke Z, Yin J, Jiang W, Hu GH. Nano-reactors for controlling the selectivity of the free radical grafting of maleic anhydride onto polypropylene in the melt. POLYM ENG SCI 2006. [DOI: 10.1002/pen.20610] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Xu Q, Hou Z, Zhang G, Fan H, Li J, Zheng S. Supercritical carbon dioxide assisted grafting of polyacrylamide to polypropylene. J Appl Polym Sci 2006. [DOI: 10.1002/app.24220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Peng Q, Xu Q, Sun D, Shao Z. Grafting of methyl methacrylate ontoAntheraea pernyi silk fiber with the assistance of supercritical CO2. J Appl Polym Sci 2006. [DOI: 10.1002/app.23408] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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48
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Hong H, He H, Jia Z, Ding C, Jia D. Preparation of polypropylene/montmorillonite nanocomposites with an exfoliated structure by a designed route. J Appl Polym Sci 2006. [DOI: 10.1002/app.24134] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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49
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50
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Sun D, Zhang R, Liu Z, Huang Y, Wang Y, He J, Han B, Yang G. Polypropylene/Silica Nanocomposites Prepared by in-Situ Sol−Gel Reaction with the Aid of CO2. Macromolecules 2005. [DOI: 10.1021/ma047314h] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Donghai Sun
- Center for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
| | - Rui Zhang
- Center for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
| | - Zhimin Liu
- Center for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
| | - Ying Huang
- Center for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
| | - Yong Wang
- Center for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
| | - Jun He
- Center for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
| | - Buxing Han
- Center for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
| | - Guanying Yang
- Center for Molecular Sciences, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China
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