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pro vyhledávání: '"Wen, Chengyuan"'
Autor:
Wen, Chengyuan
Polyetherimides are an important class of engineering thermoplastics used in a broad range of industries and applications because of their high heat resistance and stability, high strength and moduli, excellent electrical properties over a wide range
Externí odkaz:
http://hdl.handle.net/10919/104205
Publikováno v:
Journal of Chemical Physics, 2022, 157, 054501
Dynamic fluctuations in hydrogen-bond network of water occur from femto- to nano-second timescale and provides insights into structural/dynamical aspects of water at ion-water interfaces. Employing terahertz spectroscopy assisted with molecular dynam
Externí odkaz:
http://arxiv.org/abs/2306.00339
Autor:
Wen, Chengyuan
XML files are frequently used by developers when building Web applications or Java EE applications. However, maintaining XML files is challenging and time-consuming because the correct usage of XML entities is always domain-specific and rarely well d
Externí odkaz:
http://hdl.handle.net/10919/96481
Publikováno v:
Macromolecules 54, 6477-6488 (2021)
We investigate the behavior of hydrated sulfonated polysulfones over a range of ion contents through differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), and molecular dynamics (MD) simulations. Experimental eviden
Externí odkaz:
http://arxiv.org/abs/2107.06077
Publikováno v:
Macromolecules 54, 302-315 (2021)
We use molecular dynamics simulations to probe hydration, ion spacing, and cation-anion interaction in two sulfonated polysulfones with different ion distributions along the polymer backbone. At room temperature, these polymers remain in a glassy sta
Externí odkaz:
http://arxiv.org/abs/2101.05382
Publikováno v:
Macromolecules 54, 143-160 (2021)
A coarse-grained model is developed to allow large-scale molecular dynamics (MD) simulations of a branched polyetherimide derived from two backbone monomers [4,4'-bisphenol A dianhydride (BPADA) and m-phenylenediamine (MPD)], a chain terminator [phth
Externí odkaz:
http://arxiv.org/abs/2006.08715
Publikováno v:
Journal of Polymer Science 58 (11), 1521-1534 (2020)
Glass transition temperature ($T_{\text{g}}$) plays an important role in controlling the mechanical and thermal properties of a polymer. Polyimides are an important category of polymers with wide applications because of their superior heat resistance
Externí odkaz:
http://arxiv.org/abs/2001.08889
Autor:
Charkhesht, Ali, Lou, Djamila, Sindle, Ben, Wen, Chengyuan, Cheng, Shengfeng, Vinh, Nguyen Q.
Publikováno v:
The Journal of Physical Chemistry, 2019
We report relaxation dynamics of glycerol-water mixtures as probed by megahertz-to-terahertz dielectric spectroscopy in a frequency range from 50 MHz to 0.5 THz at room temperature. The dielectric relaxation spectra reveal several polarization proces
Externí odkaz:
http://arxiv.org/abs/1909.00872
Publikováno v:
Polymers 15(7), 1791 (2023)
A Monte Carlo (MC) simulation method based on the Gillespie algorithm is developed for the polymerization of branched polyetherimides from two back-bone monomers [4,4'-bisphenol A dianhydride (BPADA) and m-phenylenediamine (MPD)], a chain terminator
Externí odkaz:
http://arxiv.org/abs/1901.08737
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