Synthesis and characterization of triptycene-based polyimides with tunable high fractional free volume for gas separation membranes

Wiegand, Jennifer R.; Smith, Zachary P.; Liu, Qiang; Patterson, Christopher T.; Freeman, Benny D.; Guo, Ruilan

doi:10.1039/c4ta02303j

Cited by 184 publications

(163 citation statements)

References 47 publications

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“…Therefore, to overcome these drawbacks, as stated previously, the reduction of the cost of the monomer and the maintenance of excellent comprehensive properties of polymers without the sacrifice of their thermal and mechanical properties are the main design direction for chemical modifications. 29,30 Huang et al 31 reported some novel PIs; the polymers presented excellent solubility in most organic solvents and displayed good thermal stability and optical properties. Liaw et al 32 prepared several novel poly(pyridine imide)s with pendent naphthalene groups; these PIs showed excellent solubility and good thermal properties.…”

Section: Introductionmentioning

confidence: 98%

Design and synthesis of organosoluble and transparent polyimides containing bulky substituents and noncoplanar structures

Huang

Pei

Wang³

et al. 2015

J of Applied Polymer Sci

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A new diamine monomer, 3,3 0 -diisopropyl-4,4 0 -diaminophenyl-4 00 -phenyltouene, was designed, synthesized, and then polymerized with five commercial dianhydrides to obtain a series of novel polyimides via a one-step method. The obtained polymers showed excellent solubility in most common solvents, even in low-boiling solvents, such as chloroform, dichloromethane, and tetrahydrofuran. They exhibited a high thermal stability with the glass-transition temperature in the range 262-3188C and 10% weight loss temperatures in the range 464-4888C under a nitrogen atmospheres. Meanwhile, these polymer films also displayed a high optical transparency with a cutoff wavelength in the range 305-365 nm; prominent mechanical properties with a tensile strength of 65.6-94.9 MPa, a Young's modulus of 1.6-2.8 GPa, and an elongation at break of 9.3-13.7%; a low dielectric constant in the range of 2.91-3.18 at 1 MHz; and an outstanding hydrophobicity with a contact angle above 90.68. V C 2015 Wiley Periodicals, Inc. J.Appl. Polym. Sci. 2016, 133, 43266.

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Section: Introductionmentioning

confidence: 98%

Design and synthesis of organosoluble and transparent polyimides containing bulky substituents and noncoplanar structures

Huang

Pei

Wang³

et al. 2015

J of Applied Polymer Sci

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“…Recently, solution-processable PIMs (ladder-type and PIM-polyimides (PIM-PIs)) have been designed and predominantly evaluated for gas/gas separations (i.e. O 2 /N 2 , H 2 /N 2 , H 2 /CH 4 , CO 2 /CH 4 ) [17][18][19][20][21][22][23][24][25]. Only a few studies on PIMs, specifically the prototypical ladder-type PIM-1, have revealed outstanding vapor/gas separation properties [26,27].…”

Section: Introductionmentioning

confidence: 99%

Pure- and mixed-gas propylene/propane permeation properties of spiro- and triptycene-based microporous polyimides

Swaidan

Ghanem

Swaidan

et al. 2015

Journal of Membrane Science

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Cite this article as: Ramy J. Swaidan, Bader Ghanem, Raja Swaidan, Eric Litwiller, Ingo Pinnau, Pure-and mixed-gas propylene/propane permeation properties of spiro-and triptycene-based microporous polyimides, Journal of Membrane Science, http://dx.doi.org/10. 1016/j.memsci.2015.05.044 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. sieving behavior in membrane-based separation of gas/gas pairs. In this work, the effects of systematically increasing intra-chain rigidity on the propylene/propane separation properties were compared for PIM-PIs made from 2,3,5,6-tetramethyl-1,4-phenylene diamine (TMPD) and (i) spiro-centered dianhyride (SPDA-TMPD or PIM-PI-1) and (ii) 9,10-diisopropyltriptycene-based dianhydride (TPDA-TMPD or KAUST PI-1). Pure-gas experiments at 2 bar and 35

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“…Apart from the typical applications as films or varnishes for electronic/energy applications that take advantage of their thermal and mechanical stabilities, aromatic polyimides are being used in advanced technologies such as composites [7], nanomaterials [8], electrochromic [9], photomechanical [10], thermooptical [11], fuel cells [12], or gas separation membranes [13]. In addition, there is a relatively new use of certain amorphous aromatic polyimides as piezoelectric polymers [14] or magnetoelectric materials [15].…”

Section: Introductionmentioning

confidence: 99%

Effect of cyano dipolar groups on the performance of lithium-ion battery electrospun polyimide gel electrolyte membranes

Maceiras

Gören

Sencadas

et al. 2016

Journal of Electroanalytical Chemistry

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Effect of cyano dipolar groups on the performance of lithium-ion battery electrospun polyimide gel electrolyte membranes AbstractThree polyimide membranes (polymer 0CN, copolymers 0CN/2CN (50/50) and polymer 2CN), with and without [Formula presented] dipolar groups, have been prepared by electrospinning and evaluated as lithiumion battery separators. The prepared membranes show average fiber diameters between 0.5 and 1.09 μm and a degree of porosity of ~ 80%. The thermal stability, uptake, tortuosity and ionic conductivity values are influenced by the presence of the [Formula presented] dipolar groups in the polyimide polymer chain. The best battery performance in LFP/Li system is obtained for the 0CN sample, which shows discharge capacity values of 149.7 mAh·g− 1, 146.5 mAh·g− 1 and 124.6 mAh·g− 1 at C/20, C/10 and C/5, respectively. The obtained high solution uptake, ionic conductivity values and rate capability show that these materials are promising candidates for battery separators for rechargeable lithium-ion batteries, when compared to glass microfiber separators. The best battery performance in LFP/Li system is obtained for the 0CN sample, which shows discharge capacity values of 149.7 mAh.g -1 , 146.5 mAh.g -1 and 124.6 mAh.g -1 at C/20, C/10 and C/5, respectively. The obtained high solution uptake, ionic conductivity values and rate capability show that these materials are promising candidates for battery separators for rechargeable lithium-ion batteries, when compared to glass microfibre separators.

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Synthesis and characterization of triptycene-based polyimides with tunable high fractional free volume for gas separation membranes

Abstract: Triptycene-containing polyimide membranes with tunable fractional free volume promoting fast gas transport and selective separations.

Cited by 184 publications

References 47 publications

Design and synthesis of organosoluble and transparent polyimides containing bulky substituents and noncoplanar structures

Design and synthesis of organosoluble and transparent polyimides containing bulky substituents and noncoplanar structures

Pure- and mixed-gas propylene/propane permeation properties of spiro- and triptycene-based microporous polyimides

Effect of cyano dipolar groups on the performance of lithium-ion battery electrospun polyimide gel electrolyte membranes

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