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Dini VA, Gradone A, Villa M, Gingras M, Focarete ML, Ceroni P, Gualandi C, Bergamini G. A high-sensitivity long-lifetime phosphorescent RIE additive to probe free volume-related phenomena in polymers. Chem Commun (Camb) 2023; 59:1465-1468. [PMID: 36651351 DOI: 10.1039/d2cc05908h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The photophysical behaviour of phosphorescent rigidification-induced emission (RIE) dyes is highly affected by their micro- and nanoenvironment. The lifetime measure of RIE dyes dispersed in polymers represents an effective approach to gain valuable information on polymer free volume and thus develop materials potentially able to self-monitor physical ageing and mechanical stresses.
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Affiliation(s)
- Valentina Antonia Dini
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Via Selmi, 2, 40126, Bologna, Italy.
| | - Alessandro Gradone
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Via Selmi, 2, 40126, Bologna, Italy. .,CNR Institute for microelectronics and microsystems, Via Gobetti 101, 40129, Bologna, Italy.
| | - Marco Villa
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Via Selmi, 2, 40126, Bologna, Italy.
| | - Marc Gingras
- Aix Marseille Univ, CNRS, CINAM, Marseille, France
| | - Maria Letizia Focarete
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Via Selmi, 2, 40126, Bologna, Italy. .,Health Sciences and Technologies - Interdepartmental Center for Industrial Research (HST-ICIR), Alma Mater Studiorum - Università di Bologna, 40064 Ozzano dell'Emilia, Bologna, Italy
| | - Paola Ceroni
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Via Selmi, 2, 40126, Bologna, Italy.
| | - Chiara Gualandi
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Via Selmi, 2, 40126, Bologna, Italy. .,Health Sciences and Technologies - Interdepartmental Center for Industrial Research (HST-ICIR), Alma Mater Studiorum - Università di Bologna, 40064 Ozzano dell'Emilia, Bologna, Italy.,Interdepartmental Center for Industrial Research on Advanced Applications in Mechanical Engineering and Materials Technology, CIRI-MAM, University of Bologna, Viale Risorgimento, 2, 40136, Bologna, Italy
| | - Giacomo Bergamini
- Department of Chemistry "Giacomo Ciamician" and INSTM UdR of Bologna, University of Bologna, Via Selmi, 2, 40126, Bologna, Italy.
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Affiliation(s)
- Qing Peng
- Physics Department King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
- Researcher at K.A.CARE Energy Research & Innovation Center at Dhahran Dhahran 31261 Saudi Arabia
| | - Binghui Deng
- Manufacturing Technology and Engineering Corning Incorporated Corning NY 14831 USA
| | - Marcel Utz
- School of Chemistry University of Southampton Southampton SO17 1BJ U.K
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Jabbari-Farouji S, Vandembroucq D. Compression-induced anti-nematic order in glassy and semicrystalline polymers. SOFT MATTER 2020; 16:102-106. [PMID: 31793978 DOI: 10.1039/c9sm01848d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We provide new insights into the molecular origin of the asymmetry between uniaxial tensile and compressive deformation of glassy and semicrystalline polymers using molecular dynamics simulations. The difference between the two responses strongly depends on the chain length and is the largest at intermediate chain lengths. Irrespective of chain length, the intra- and interchain organization of polymers under extension and compression are remarkably distinct. The chains align along the tensile axis leading to a global nematic order of the bonds and end-to-end vectors, whereas compression reorganizes polymers to lie in planes perpendicular to the compressive axis resulting in the emergence of an anti-nematic order and destruction of crystallinity. Regardless of the initial glassy or semicrystalline structure, the deformed state of polymers at large strains converge towards the same kind of structure that only depends on the deformation mode.
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Affiliation(s)
- Sara Jabbari-Farouji
- Institute of Physics, Johannes Gutenberg-University, Staudingerweg 7-9, 55128 Mainz, Germany and Institute of Physics, University of Amsterdam, 1098 XH Amsterdam, The Netherlands.
| | - Damien Vandembroucq
- Laboratoire PMMH, UMR 7636 CNRS, ESPCI, PSL Research University, Sorbonne Université, Université Paris Diderot, Paris, France
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Vidavsky Y, Yang SJ, Abel BA, Agami I, Diesendruck CE, Coates GW, Silberstein MN. Enabling Room-Temperature Mechanochromic Activation in a Glassy Polymer: Synthesis and Characterization of Spiropyran Polycarbonate. J Am Chem Soc 2019; 141:10060-10067. [PMID: 31244138 DOI: 10.1021/jacs.9b04229] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | | | | | - Iris Agami
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Haifa 3200003, Israel
| | - Charles E. Diesendruck
- Schulich Faculty of Chemistry, Technion − Israel Institute of Technology, Haifa 3200003, Israel
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