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Zhu F, Song Y, Liu S, Nie J, He Y. Preparation of polymerizable thermal initiator and its application in photo-induced thermal frontal polymerization. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.05.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Rassu M, Alzari V, Nuvoli D, Nuvoli L, Sanna D, Sanna V, Malucelli G, Mariani A. Semi-interpenetrating polymer networks of methyl cellulose and polyacrylamide prepared by frontal polymerization. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28498] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mariella Rassu
- Dipartimento di Chimica e Farmacia, Università di Sassari; INSTM, Via Vienna 2 Sassari 07100 Italy
| | - Valeria Alzari
- Dipartimento di Chimica e Farmacia, Università di Sassari; INSTM, Via Vienna 2 Sassari 07100 Italy
| | - Daniele Nuvoli
- Dipartimento di Chimica e Farmacia, Università di Sassari; INSTM, Via Vienna 2 Sassari 07100 Italy
| | - Luca Nuvoli
- Dipartimento di Chimica e Farmacia, Università di Sassari; INSTM, Via Vienna 2 Sassari 07100 Italy
| | - Davide Sanna
- Dipartimento di Chimica e Farmacia, Università di Sassari; INSTM, Via Vienna 2 Sassari 07100 Italy
| | - Vanna Sanna
- Dipartimento di Chimica e Farmacia, Università di Sassari; INSTM, Via Vienna 2 Sassari 07100 Italy
| | - Giulio Malucelli
- Politecnico di Torino, INSTM; Dipartimento di Scienza Applicata e Tecnologia; Viale Teresa Michel 5 Alessandria 15121 Italy
| | - Alberto Mariani
- Dipartimento di Chimica e Farmacia, Università di Sassari; INSTM, Via Vienna 2 Sassari 07100 Italy
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Holt T, Fazende K, Jee E, Wu Q, Pojman JA. Cure‐on‐demand wood adhesive based on the frontal polymerization of acrylates. J Appl Polym Sci 2016. [DOI: 10.1002/app.44064] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- TreyVon Holt
- Department of ChemistryLouisiana State University232 Choppin HallBaton Rouge Louisiana70803
| | - Kylee Fazende
- Department of ChemistryLouisiana State University232 Choppin HallBaton Rouge Louisiana70803
| | - Elizabeth Jee
- Department of ChemistryLouisiana State University232 Choppin HallBaton Rouge Louisiana70803
| | - Qinglin Wu
- School of Renewable Natural ResourcesLouisiana State UniversityRoom 227 Renewable Natural Resources BldgBaton Rouge Louisiana70803
| | - John A. Pojman
- Department of ChemistryLouisiana State University232 Choppin HallBaton Rouge Louisiana70803
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Alzari V, Nuvoli D, Sanna D, Ruiu A, Mariani A. Effect of limonene on the frontal ring opening metathesis polymerization of dicyclopentadiene. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27776] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Valeria Alzari
- Department of Chemistry and Pharmacy and INSTM Unit; via Vienna 2 07100 Sassari Italy
| | - Daniele Nuvoli
- Department of Chemistry and Pharmacy and INSTM Unit; via Vienna 2 07100 Sassari Italy
| | - Davide Sanna
- Department of Chemistry and Pharmacy and INSTM Unit; via Vienna 2 07100 Sassari Italy
| | - Andrea Ruiu
- Department of Chemistry and Pharmacy and INSTM Unit; via Vienna 2 07100 Sassari Italy
| | - Alberto Mariani
- Department of Chemistry and Pharmacy and INSTM Unit; via Vienna 2 07100 Sassari Italy
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Totaro NP, Murphy ZD, Burcham AE, King CT, Scherr TF, Bounds CO, Dasa V, Pojman JA, Hayes DJ. In vitro evaluation of thermal frontally polymerized thiol-ene composites as bone augments. J Biomed Mater Res B Appl Biomater 2015; 104:1152-60. [PMID: 26061219 DOI: 10.1002/jbm.b.33466] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 03/31/2015] [Accepted: 05/07/2015] [Indexed: 11/12/2022]
Abstract
Because of the large number of total knee replacement (TKR) surgeries conducted per year, and with projections of increased demand to almost a million primary TKR surgeries per year by 2030 in the United States alone, there is a need to discover more efficient working materials as alternatives to current bone cements. There is a need for surgeons and hospitals to become more efficient and better control over the operative environment. One area of inefficiency is the cement steps during TKR. Currently the surgeon has very little control over cement polymerization. This leads to an increase in time, waste, and procedural inefficiencies. There is a clear need to create an extended working time, moldable, osteoconductive, and osteoinductive bone augment as a substitution for the current clinically used bone cement where the surgeon has better control over the polymerization process. This study explored several compositions of pentaerythritol-co-trimethylolpropane tris-(3-mercaptopropionate) hydroxyapatite composite materials prepared via benzoyl peroxide-initiated thermal frontal polymerization. The 4:1 acrylate to thiol ratio containing augment material shows promise with a maximal propagation temperature of 160°C ± 10°C, with mechanical strength of 3.65 MPa, and 111% cytocompatibility, relative to the positive control. This frontally polymerized material may have application as an augment with controlled polymerization supporting cemented implants. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1152-1160, 2016.
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Affiliation(s)
- Nicholas P Totaro
- Department of Biological and Agricultural Engineering, Louisiana State University and LSU AgCenter, Baton Rouge, Louisiana, 70803
| | - Zachari D Murphy
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, 70803
| | - Abigail E Burcham
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana, 70803
| | - Connor T King
- Department of Biological and Agricultural Engineering, Louisiana State University and LSU AgCenter, Baton Rouge, Louisiana, 70803
| | - Thomas F Scherr
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, 37235
| | - Christopher O Bounds
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana, 70803
| | - Vinod Dasa
- Department of Orthopedics, Louisiana State University Health Science Center, New Orleans, Louisiana, 70115
| | - John A Pojman
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana, 70803
| | - Daniel J Hayes
- Department of Biological and Agricultural Engineering, Louisiana State University and LSU AgCenter, Baton Rouge, Louisiana, 70803
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Nuvoli D, Alzari V, Pojman JA, Sanna V, Ruiu A, Sanna D, Malucelli G, Mariani A. Synthesis and characterization of functionally gradient materials obtained by frontal polymerization. ACS APPLIED MATERIALS & INTERFACES 2015; 7:3600-3606. [PMID: 25611548 DOI: 10.1021/am507725k] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Functionally gradient materials (FGMs) with gradual and continuous changes of their properties in one or more dimensions are useful in a wide range of applications. However, obtaining such materials with accurate control of the gradient, especially when the gradient is nonlinear, is not easy. In this work, frontal polymerization (FP) was exploited to synthesize polymeric FGMs. We demonstrated that the use of ascending FP with continuous feeding of monomers with computer-controlled peristaltic pumps provided an excellent method for the preparation of functionally gradient materials with programmed gradients. To test the effectiveness of the method, copolymers made from triethylene glycol dimethacrylate/hexyl methacrylate with linear and hyperbolic gradient in composition were synthesized. Differential scanning calorimetry (DSC), Shore A hardness measurements, compression tests, and swelling studies were performed along the length of the materials to assess the relationship between the gradients and the material properties. Glass transition temperatures, determined by DSC, showed a linear dependence on the composition and were in agreement with theoretical values. The other properties showed different and specific behaviors as a function of the compositional gradient.
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Affiliation(s)
- Daniele Nuvoli
- Dipartimento di Chimica e Farmacia, Università di Sassari , Local INSTM Unit, Via Vienna 2, 07100 Sassari, Italy
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Carranza A, Gewin M, Pojman JA. Europium-doped aluminum oxide phosphors as indicators for frontal polymerization dynamics. CHAOS (WOODBURY, N.Y.) 2014; 24:023118. [PMID: 24985432 DOI: 10.1063/1.4876438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, we present an inexpensive and practical method that allows the monitoring and visualization of front polymerization, propagation, and dynamics. Commercially available europium-doped aluminum oxide powders were combined with video imaging to visualize free-radical propagating polymer fronts. In order to demonstrate the applicability of this method, frontal copolymerization reactions of propoxylated glycerin triacrylate (EB53), pentaerythritol triacrylate (PETA), and pentaerythritol tetra-acrylate (PETEA) with 1,1-Bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane (Luperox 231®) as an initiator were studied and compared to the results obtained by IR imaging. Systems exhibiting higher filler loading, higher EB53 content, and less acrylated monomers showed a marked decrease in front velocity, while those with more acrylated monomers and higher crosslinking density showed a marked increase in front velocity. Finally, in order to show the potential of the imaging technique, we studied fronts propagating in planar and spherical geometries.
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Affiliation(s)
- Arturo Carranza
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, USA
| | - Mariah Gewin
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, USA
| | - John A Pojman
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803-1804, USA
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Illescas J, Sanna R, Alzari V, Nuvoli D, Casu M, Sanna R, Rivera E, Mariani A. Organic-inorganic interpenetrating polymer networks and hybrid polymer materials prepared by frontal polymerization. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26882] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Javier Illescas
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México; Circuito exterior S/N. Ciudad Universitaria, Coyoacan 04510 México DF
- Dipartimento di Chimica e Farmacia; Università di Sassari; Local INSTM Unit Sassari 07100 Italy
| | - Roberta Sanna
- Dipartimento di Chimica e Farmacia; Università di Sassari; Local INSTM Unit Sassari 07100 Italy
| | - Valeria Alzari
- Dipartimento di Chimica e Farmacia; Università di Sassari; Local INSTM Unit Sassari 07100 Italy
| | - Daniele Nuvoli
- Dipartimento di Chimica e Farmacia; Università di Sassari; Local INSTM Unit Sassari 07100 Italy
| | - Mariano Casu
- Dipartimento di Scienze Chimiche e Geologiche; Università di Cagliari; Cittadella Universitaria di Monserrato; Monserrato 09042 Italy
| | - Roberta Sanna
- Dipartimento di Scienze Chimiche e Geologiche; Università di Cagliari; Cittadella Universitaria di Monserrato; Monserrato 09042 Italy
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México; Circuito exterior S/N. Ciudad Universitaria, Coyoacan 04510 México DF
| | - Alberto Mariani
- Dipartimento di Chimica e Farmacia; Università di Sassari; Local INSTM Unit Sassari 07100 Italy
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Sanna R, Alzari V, Nuvoli D, Scognamillo S, Marceddu S, Mariani A. Polymer hydrogels of 2-hydroxyethyl acrylate and acrylic acid obtained by frontal polymerization. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.25913] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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