Poly(4-methyl-1-pentene) as a semicrystalline polymeric matrix for gas separating membranes

Markova, Svetlana; Gries, Thomas; Teplyakov, V. V.

doi:10.1016/j.memsci.2019.117754

Cited by 32 publications

(15 citation statements)

References 27 publications

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“…The key point in its longterm application is to enhance the property of membrane materials, and oxygen exchange efficiency is a vital indicator for evaluating the property of membrane materials. After decades of research progress, it is gradually developed into hollow fiber membrane material prepared by PP or PMP, which can meet the requirements of oxygen exchange for blood oxygenation [132][133][134][135][136].…”

Section: Conclusion and Prospectmentioning

confidence: 99%

Modification strategies to improve the membrane hemocompatibility in extracorporeal membrane oxygenator (ECMO)

Wang

et al. 2021

Adv Compos Hybrid Mater

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Since extracorporeal membrane oxygenator (ECMO) has been utilized to save countless lives by providing continuous extracorporeal breathing and circulation to patients with severe cardiopulmonary failure. In particular, it has played an important role during the COVID-19 epidemic. One of the important composites of ECMO is membrane oxygenator, and the core composite of the membrane oxygenator is hollow fiber membrane, which is not only a place for blood oxygenation, but also is a barrier between the blood and gas side. However, the formation of blood clots in the oxygenator is a key problem in the using process. According to the study of the mechanism of thrombosis generation, it was found that improving the hemocompatibility is an efficient approach to reduce thrombus formation by modifying the surface of materials. In this review, the corresponding modification methods (surface property regulation, anticoagulant grafting, and bio-interface design) of hollow fiber membranes in ECMO are classified and discussed, and then, the research status and development prospects are summarized. Graphical abstract

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Section: Conclusion and Prospectmentioning

confidence: 99%

Modification strategies to improve the membrane hemocompatibility in extracorporeal membrane oxygenator (ECMO)

Wang

et al. 2021

Adv Compos Hybrid Mater

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“…At the temperatures below T g the values of D a and D c are quite close. Detailed explanation of the calculation is done in [18]. Permeability coefficients for amorphous and crystalline phases were obtained from the experimental data using the same approach (Table 4).…”

Section: Resultsmentioning

confidence: 99%

“…The influence of crystallinity degree of PMP on the permeability parameters was investigated in our previous work [18]. It was shown that with increasing crystallinity, the permeability of some gases (namely, lower hydrocarbons) decreases, and at the same time the permeability of helium does not depend on crystallinity.…”

Section: Resultsmentioning

confidence: 99%

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Combination of the Experimental and Theoretical Approaches for the Estimation of the C1–C4 Alkane Permeability Parameters in Poly (4-Methyl-2-Pentyne) and Poly (4-Methyl-1-Pentene)

Markova¹,

Zhmakin

Gries

et al. 2020

Applied Sciences

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Poly (4-methyl-2-pentyne) (PMPentyne) and poly (4-methyl-1-pentene) (PMPentene) as membrane gas-separating media were studied with a combination of experimental and theoretical approaches. Experimental approaches included the permeability measurements for C1–C4 alkanes in linear heating mode (for PMPentyne) and under isothermal conditions (for PMPentene), and diffusivity evaluation by a differential method for PMPentene. Theoretical approaches included the ‘hard-spheres’ theory for calculation of gas solubility in PMPentyne and gas transport theory for two-phase systems for the estimation of the amorphous and crystalline phases contribution in PMPentene. Correlation analysis was used for any type of gas transfer parameter calculation where experimental data were lacking. These combinations of methods allowed obtaining the whole set of parameters for any gas–polymer pairing and explained the butane-selective properties revealed in PMPentyne (C1 < C2 < C3 < C4) and methane-selective properties of PMPentene (C1 > C2 > C3 > C4).

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“…The diffusivity, solubility, and permeability coefficients of the amorphous and crystalline PMP phase have already been determined. [ 6 ] Currently, Mitsui Chemicals, Inc. commercially produces PMP for membrane applications. However, the traditional wet manufacturing process of PMP HF with a thin selective layer for gas separation purposes requires the use of harmful solvents and precipitants.…”

Section: Introductionmentioning

confidence: 99%

Melt spinning and characterization of hollow fibers from poly(4‐methyl‐1‐pentene)

Pelzer

Vad

Becker

et al. 2020

J of Applied Polymer Sci

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In this article, the melt spinning behavior of poly(4-methyl-1-pentene) (PMP) hollow fibers (HF) is examined. The melt spinning trials are carried out on a pilot scale melt spinning plant with different settings while a 10-hole 2cshaped spinneret is used. It is found that the winding speed mainly affects the outer fiber diameter. The influence of different melt spinning parameters is investigated, in particular temperatures, take-up velocities, and the use of quench air. For this purpose, the shape and crystalline structure of the fibers are analyzed using a light microscope, a scanning electron microscope, and wide-angle X-ray scattering. The shape of the fibers is mainly influenced by the temperature settings in the melt spinning process. As a reasonable lower limit, a melt spinning temperature of 280 C is identified. Concerning the crystallinity, a saturation going along with a slight reduction of the polymer chain orientation is observed at elevated take-up velocities.

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Poly(4-methyl-1-pentene) as a semicrystalline polymeric matrix for gas separating membranes

Cited by 32 publications

References 27 publications

Modification strategies to improve the membrane hemocompatibility in extracorporeal membrane oxygenator (ECMO)

Modification strategies to improve the membrane hemocompatibility in extracorporeal membrane oxygenator (ECMO)

Combination of the Experimental and Theoretical Approaches for the Estimation of the C1–C4 Alkane Permeability Parameters in Poly (4-Methyl-2-Pentyne) and Poly (4-Methyl-1-Pentene)

Melt spinning and characterization of hollow fibers from poly(4‐methyl‐1‐pentene)

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