Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Mitchel Shen"'
Autor:
Mitchel Shen, David R. Hansen
Publikováno v:
Journal of Polymer Science: Polymer Symposia. 46:55-67
The molecular theory of viscoelasticity has been modified in a previous publication for homogeneous block copolymers; the theory predicts that the maximum relaxation time of the block copolymer can be computed with the knowledge of submolecular sizes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b3f1c8da52e873b2e280f37ea290f2c
https://doi.org/10.1002/polc.5070460106
https://doi.org/10.1002/polc.5070460106
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 35:23-38
Interconversion of viscoelastic functions are customarily accomplished through the use of distribution of relaxation or retardation times. It will be shown that, by employing the Linear Programming (LP) technique, numerical interconversion may be obt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c612b1489b192dcc1e1abe2155be201b
https://doi.org/10.1002/polc.5070350104
https://doi.org/10.1002/polc.5070350104
Publikováno v:
Journal of Polymer Science: Polymer Physics Edition. 15:1869-1883
Our earlier model of entangled chain dynamics represented the elastic effects at entanglement points as a coupling with the surrounding medium, which was propagated weakly to every other entanglement site on the parent chain. In this way, a great var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7e41b0e72177c91100ee0074dded407
https://doi.org/10.1002/pol.1977.180151101
https://doi.org/10.1002/pol.1977.180151101
Publikováno v:
Journal of Polymer Science: Polymer Chemistry Edition. 17:2775-2782
The plasma polymerization of ethane has been studied in the frequency range of from 50 Hz to 13.56 MHz. The rate of polymer deposition is strongly dependent on frequency, with significantly higher rates being observed at frequencies below 6 MHz. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c2a87c26c91100b86069f93e5fbb525
https://doi.org/10.1002/pol.1979.170170914
https://doi.org/10.1002/pol.1979.170170914
Publikováno v:
Journal of Polymer Science: Polymer Physics Edition. 15:981-986
Photoconductivity measurements were carried out on plasma polymerized styrene (PPS) in vacuo, in air, and in subsequently re-evacuated conditions. Samples with two gold electrodes (Au-PPS-Au) and gold-aluminum electrodes (Au-PPS-Al) were used. Positi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb607120e1cba556e607258dba61bb8c
https://doi.org/10.1002/pol.1977.180150605
https://doi.org/10.1002/pol.1977.180150605
Publikováno v:
Macromolecules. 9:345-354
The bead-and-spring model of Rouse, Bueche and Zimm is extended to describe the viscoelastic behavior of polymers with chain entanglements. Motion of the macromolecules is retarded by the presence of entanglements with neighboring chains. This effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31baa9040ca97a5fc3d637c3b9647023
https://doi.org/10.1021/ma60050a033
https://doi.org/10.1021/ma60050a033
Publikováno v:
Journal of Polymer Science: Polymer Chemistry Edition. 13:1541-1544
Plasma-polymerized polyethylene (PPE) obtained on a radio-frequency glow discharge has been analyzed by flash pyrolysis combined with in-line hydrogenation and gas chromatography. The pyrogram of a bulk powder PPE, which had been characterized by bot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5dc94851ac124172d10def33e45663f0
https://doi.org/10.1002/pol.1975.170130706
https://doi.org/10.1002/pol.1975.170130706
Autor:
Mitchel Shen, Hiromichi Kawai
Publikováno v:
AIChE Journal. 24:1-20
Because of the generally immiscible nature of polymers, multicomponent polymers or polymeric alloys often exhibit microphase separation. The morphologies of these heterogeneous materials are determined not only by the composition of the system but al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db890e7497756fd1bd063c946c2dbdf8
https://doi.org/10.1002/aic.690240102
https://doi.org/10.1002/aic.690240102
Autor:
Mitchel Shen, David R. Hansen
Publikováno v:
Macromolecules. 8:343-348
The Rouse-Bueche-Zimm molecular theory of viscoelasticity has been extended to compute the retardation time spectra of block copolymers of various configurations and compositions. The basic assumption of the block copolymer model is that the effect o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a8d8a4b54f0fddc0448e662733dddf3
https://doi.org/10.1021/ma60045a020
https://doi.org/10.1021/ma60045a020
Publikováno v:
Journal of Macromolecular Science: Part A - Chemistry. 10:519-533
The dielectric behavior of plasma-polymerized ethylene (PPE), ethylene/acetylene (PPEA), ethane/vinyl chloride (PPEVC) and tetrafluoroethylene (PPTFE) was studied over a frequency range of 102 to 105 Hz between -150 and 100°C. After exposure to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a19f1a5f050cfce4a2c67f8475f7280
https://doi.org/10.1080/00222337608061197
https://doi.org/10.1080/00222337608061197