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Deghiedy NM, El-Gamal SMA, Ramadan M, Mohsen A, Hazem MM, Sayed MA, Helmy FM, Wetwet MM, Swilem AE. Towards the preparation of sustainable superplasticizers for geopolymeric pastes via radiation-induced grafting of sulfonic group-bearing monomers onto corn starch. Carbohydr Polym 2024; 341:122359. [PMID: 38876709 DOI: 10.1016/j.carbpol.2024.122359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 04/29/2024] [Accepted: 06/01/2024] [Indexed: 06/16/2024]
Abstract
To address escalating environmental and sustainability concerns of petroleum-based superplasticizers (SPs), this work aims to develop sustainable and eco-friendly starch-based SPs using gamma radiation for maintaining the desired workability of geopolymeric pastes. Specifically, two green SPs were prepared from starch via radiation-induced grafting of two sulfonic group-bearing monomers, namely 2-acrylamido-2-methylpropane sulfonic acid (AMPS) and 4-styrene sulfonic acid sodium salt (Na4SS). The grafting reaction was improved by initial modification of starch with glycidyl methacrylate to insert vinyl groups into the starch backbone. The modified starch samples were characterized by a variety of analytical techniques such as FTIR, 1H NMR, EDX, SLS, and viscometry. The prepared SPs exhibited high stability in aqueous 5 % NaOH. The effect of the prepared SPs on the fresh properties of GGBFS/MK geopolymer was studied using the mini slump test, zeta potential, adsorption capacity, and setting time. They significantly improved the paste flowability and dispersion compared to the control. Notably, the aromatic Na4SS-grafted starch displayed a comparable enhancement to the commercial PNS, while outperforming the aliphatic AMPS-grafted sample. This emphasizes the potential of these green SPs to address the challenges posed by the petroleum-based SPs and maximize the benefit of using starch as a green renewable resource.
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Affiliation(s)
- Noha M Deghiedy
- Polymer Chemistry Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, 11787, Cairo, Egypt
| | - Safaa M A El-Gamal
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Mohamed Ramadan
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Alaa Mohsen
- Faculty of Engineering, Ain Shams University, Abbassia, 11517, Cairo, Egypt
| | - Mahmoud M Hazem
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Mostafa A Sayed
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Fatma M Helmy
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Mona M Wetwet
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Ahmed E Swilem
- Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt; Chemistry Department, Faculty of Science, Galala University, Galala City, 43511, Suez, Egypt.
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Functional modification, self-assembly and application of calix[4]resorcinarenes. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-021-01119-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Capacchione C, Della Sala P, Quaratesi I, Bruno I, Pauciulo A, Bartiromo AR, Iannece P, Neri P, Talotta C, Gliubizzi R, Gaeta C. Poly(Ethylene Glycol)/β-Cyclodextrin Pseudorotaxane Complexes as Sustainable Dispersing and Retarding Materials in a Cement-Based Mortar. ACS OMEGA 2021; 6:12250-12260. [PMID: 34056378 PMCID: PMC8154154 DOI: 10.1021/acsomega.1c01133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/16/2021] [Indexed: 05/14/2023]
Abstract
Pseudorotaxane complexes between β-CD and mPEG derivatives bearing a carboxylic acid function (mPEG-COOH) were synthesized and investigated for their dispersing properties in a cement-based mortar. The formation of mPEG-COOH derivatives and their pseudorotaxanes was investigated by 1D nuclear magnetic resonance, diffusion ordered spectroscopy, and thermogravimetric analysis experiments. Mortar tests clearly indicate that mPEG-COOH@β-CD-interpenetrated supramolecules show excellent dispersing abilities. In addition, the supramolecular complexes show a retarding effect, analogously to other known β-CD-based superplasticizers in which the β-CD is covalently grafted on a polymeric backbone.
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Affiliation(s)
- Clotilde Capacchione
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Salerno, Italy
- BI-QEM
SPECIALTIES SPA, Zona
industriale, 84021 Buccino, Salerno, Italy
| | - Paolo Della Sala
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Salerno, Italy
| | - Ilaria Quaratesi
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Salerno, Italy
- BI-QEM
SPECIALTIES SPA, Zona
industriale, 84021 Buccino, Salerno, Italy
| | - Immacolata Bruno
- BI-QEM
SPECIALTIES SPA, Zona
industriale, 84021 Buccino, Salerno, Italy
| | - Antonio Pauciulo
- BI-QEM
SPECIALTIES SPA, Zona
industriale, 84021 Buccino, Salerno, Italy
| | | | - Patrizia Iannece
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Salerno, Italy
| | - Placido Neri
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Salerno, Italy
| | - Carmen Talotta
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Salerno, Italy
| | - Rocco Gliubizzi
- BI-QEM
SPECIALTIES SPA, Zona
industriale, 84021 Buccino, Salerno, Italy
| | - Carmine Gaeta
- Dipartimento
di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano, Salerno, Italy
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