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Cheng X, Hu H, Bu L, Wu Y, Ma Z, Ma Z. Suppressive Photochromism and Promotive Mechanochromism of Rhodamine Mechanophore by the Strategy of Poly(methyl acrylate)/Polyurethane Interpenetrating Polymer Network. ACS Macro Lett 2024; 13:308-314. [PMID: 38373339 DOI: 10.1021/acsmacrolett.3c00749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
As molecular design and the structure-property relationships of photochemical molecules established in the literature serve as a convenient reference for mechanophore exploration, many typical mechanophores suffer undesired responses to UV light or even sunlight in bulk polymers. We developed a strategy of a poly(methyl acrylate)/polyurethane (PMA/PU) interpenetrating polymer network (IPN) to suppress the photochromic property of the mechanophore and promote its mechanochromic property. A widely used rhodamine mechanophore (Rh-2OH) was first incorporated into polyurethane (P1). Then P1 was swollen in methyl acrylate and photopolymerized to prepare a PMA2.8/PU IPN (P2). Different from photo/force-responsive P1, P2 selectively responded to force because the low free volume in IPN greatly hinders photoisomerization of the rhodamine spirolactam, suggesting that a simple IPN strategy successfully resolves the giant problem of nonselective response to photo/force for photochromic mechanophores. Moreover, PMA/PU IPN enhanced the mechanical property, resulting in a higher mechanochemical activation ratio than PU, and the prestretching effect of PMA/PU IPN promoted the force sensitivity of rhodamine mechanophores significantly. We believe that the strategy can be applied to other mechanophores, promoting their application in more complicated environments.
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Affiliation(s)
- Xin Cheng
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Huan Hu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lijuan Bu
- Chinese PLA Center for Disease Control and Prevention, Beijing 100071, China
| | - Yu Wu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhimin Ma
- College of Engineering, Peking University, Beijing 100871, China
| | - Zhiyong Ma
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200438, China
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Synthesis of poly(n-alkyl acrylamides) and evaluation of nanophase separation effects by temperature-dependent infrared spectroscopy. MONATSHEFTE FUR CHEMIE 2023. [DOI: 10.1007/s00706-023-03037-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
AbstractCommon linear polymers are known to undergo phase changes at the glass-transition temperature (Tg) and the melting point (Tm). In recent years, it has also been shown that molecules with long aliphatic side chains can give rise to a backbone-independent melting phenomenon, known as nanophase separation. This effect describes the self-assembly — independent of the polymer backbone — of alkyl side chains into semi-crystalline nanostructures. This work presents optimized, gram scale synthesis routes for dodecyl and octadecyl acrylamide and their respective homopolymers. Differential scanning calorimetry (DSC) experiments detected a broad endothermal signal for poly(n-dodecyl acrylamide) at − 29 °C and a narrower, more intense signal for poly(n-octadecyl acrylamide) at 34 °C. These signals indicate the nanophase separation TM of the alkyl side chains. We undertook the first temperature-controlled infrared spectroscopy investigations of these materials revealing a clear hypsochromic shift of the C–H stretching signals above TM and the amide I signal shifts that occurred only above and below Tg. These results provide further evidence, that the side chains act independently of the polymer backbone and show that infrared spectroscopy is a powerful tool for monitoring conformational changes in polymer side chains.
Graphical abstract
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Davletbaeva IM, Alentiev AY, Faizulina ZZ, Zaripov II, Nikiforov RY, Parfenov VV, Arkhipov AV. Organosilica-Modified Multiblock Copolymers for Membrane Gas Separation. Polymers (Basel) 2021; 13:3579. [PMID: 34685339 PMCID: PMC8537929 DOI: 10.3390/polym13203579] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 11/16/2022] Open
Abstract
Organosubstituted silica derivatives were synthesized and investigated as modifiers of block copolymers based on macroinitiator and 2,4-toluene diisocyanate. A peculiarity of the modified block copolymers is the existence in their structure of coplanar rigid polyisocyanate blocks of acetal nature (O-polyisocyanates). Organosubstituted silica derivatives have a non-additive effect on high-temperature relaxation and α-transitions of modified polymers and exhibit the ability to influence the supramolecular structure of block copolymers. The use of the developed modifiers leads to a change in the gas transport properties of block copolymers. The increase of the permeability coefficients is due to the increase of the diffusion coefficients. At the same time, the gas solubility coefficients do not change. An increase in the ideal selectivity for a number of gas pairs is observed. An increase in the selectivity for the CO2/N2 gas pair (from 25 to 39) by 1.5 times demonstrates the promising use of this material for flue gases separation.
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Affiliation(s)
- Ilsiya M. Davletbaeva
- Department of Technology of Synthetic Rubber, Kazan National Research Technological University, 68 Karl Marx str, 420015 Kazan, Russia; (Z.Z.F.); (I.I.Z.)
| | - Alexander Yu. Alentiev
- A.V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia; (A.Y.A.); (R.Y.N.)
| | - Zulfiya Z. Faizulina
- Department of Technology of Synthetic Rubber, Kazan National Research Technological University, 68 Karl Marx str, 420015 Kazan, Russia; (Z.Z.F.); (I.I.Z.)
| | - Ilnaz I. Zaripov
- Department of Technology of Synthetic Rubber, Kazan National Research Technological University, 68 Karl Marx str, 420015 Kazan, Russia; (Z.Z.F.); (I.I.Z.)
- SIBUR LLC, 16, bld.3, Krzhizhanovskogo Str., GSP-7, 117997 Moscow, Russia
| | - Roman Yu. Nikiforov
- A.V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia; (A.Y.A.); (R.Y.N.)
| | - Victor V. Parfenov
- Department of Solid State Physics, Kazan Federal University, 18 Kremlyovskaya Str, 420008 Kazan, Russia;
| | - Alexander V. Arkhipov
- Institute of Electronics and Telecommunications, Peter the Great St.Petersburg Polytechnic University, 29 Polytechnicheskaya st., 195251 St. Petersburg, Russia;
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Kojabad ME, Babaluo A, Tavakoli A. A novel semi-mobile carrier facilitated transport membrane containing aniline/poly (ether-block-amide) for CO2/N2 separation: Molecular simulation and experimental study. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118494] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim D, Hossain I, Husna A, Kim TH. Development of CO 2-Selective Polyimide-Based Gas Separation Membranes Using Crown Ether and Polydimethylsiloxane. Polymers (Basel) 2021; 13:1927. [PMID: 34200603 PMCID: PMC8227709 DOI: 10.3390/polym13121927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/02/2021] [Accepted: 06/05/2021] [Indexed: 01/15/2023] Open
Abstract
A series of CO2-selective polyimides (CE-PDMS-PI-x) was synthesized by copolymerizing crown ether diamine (trans-diamino-DB18C6) and PDMS-diamine with 4,4'-(hexafluoroisopropylidene) di-phthalic anhydride (6FDA) through the polycondensation reaction. The structural characteristics of the copolymers and corresponding membranes were characterized by nuclear magnetic resonance (NMR), infrared spectroscopy (ATR-FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and gel permeation chromatography (GPC). The effect of PDMS loading on the CE-PDMS-PI-x copolymers was further analyzed and a very good structure-property relationship was found. A well-distributed soft PDMS unit played a key role in the membrane's morphology, in which improved CO2-separation performance was observed at a low PDMS content (5 wt %). In contrast, the fine-grained phase separation adversely affected the separation behavior at a certain level of PDMS loading, and the PDMS was found to provide a flexible gas-diffusion path, affecting only the permeability without changing the selective gas-separation performance for the copolymers with a PDMS content of 20% or above.
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Affiliation(s)
- Dongyoung Kim
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea; (D.K.); (I.H.); (A.H.)
- Research Institute of Basic Sciences, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea
| | - Iqubal Hossain
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea; (D.K.); (I.H.); (A.H.)
- Research Institute of Basic Sciences, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea
| | - Asmaul Husna
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea; (D.K.); (I.H.); (A.H.)
- Research Institute of Basic Sciences, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea
| | - Tae-Hyun Kim
- Organic Material Synthesis Laboratory, Department of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea; (D.K.); (I.H.); (A.H.)
- Research Institute of Basic Sciences, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Korea
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Katowah DF, Alqarni S, Mohammed GI, Al Sheheri SZ, Alam MM, Ismail SH, Asiri AM, Hussein MA, Rahman MM. Selective Hg
2+
sensor performance based various carbon‐nanofillers into
CuO‐PMMA
nanocomposites. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4919] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dina F. Katowah
- Chemistry Department, Faculty of ScienceKing Abdulaziz University Jeddah Saudi Arabia
- Department of Chemistry, Faculty of Applied ScienceUmm Al‐Qura University Makkah Saudi Arabia
| | - Sara Alqarni
- Department of Chemistry, College of ScienceUniversity of Jeddah Jeddah Saudi Arabia
| | - Gharam I. Mohammed
- Department of Chemistry, Faculty of Applied ScienceUmm Al‐Qura University Makkah Saudi Arabia
| | - Soad Z. Al Sheheri
- Chemistry Department, Faculty of ScienceKing Abdulaziz University Jeddah Saudi Arabia
| | - M. M. Alam
- Department of Chemical Engineering and Polymer ScienceShahjalal University of Science and Technology Sylhet Bangladesh
| | | | - Abdullah M. Asiri
- Chemistry Department, Faculty of ScienceKing Abdulaziz University Jeddah Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR)King Abdulaziz University Jeddah Saudi Arabia
| | - Mahmoud A. Hussein
- Chemistry Department, Faculty of ScienceKing Abdulaziz University Jeddah Saudi Arabia
- Polymer chemistry Lab., Chemistry Department, Faculty of ScienceAssiut University Assiut Egypt
| | - Mohammed M. Rahman
- Chemistry Department, Faculty of ScienceKing Abdulaziz University Jeddah Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR)King Abdulaziz University Jeddah Saudi Arabia
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