Zobrazeno 1 - 10
of 60
pro vyhledávání: '"N. S. Schneider"'
Publikováno v:
Polymer. 55:150-159
The present work is concerned with the effect of cation exchange, with calcium, aluminum and cupric cations, on the permeation kinetics of dimethyl methylphosphonate (DMMP) in a pentablock ionomer (Nexar™) and a perfluoroionomer (Nafion™). The di
Autor:
N. S. Schneider, D. Rivin
Publikováno v:
Polymer. 51:671-678
Diffusion coefficients for water in high permeability ionomers are determined from steady state permeation measurements, corrected for boundary layer resistance and change in vapor concentration along sample length, to circumvent problems due to heat
Publikováno v:
The Journal of Physical Chemistry B. 108:8900-8909
Polyelectrolyte membranes (PEM) such as Nafion (Du Pont) used as compartment separators in fuel cells and other electro-chemical applications are also of interest as permselective diffusion barriers in protective fabrics. By means of sorption and per
Publikováno v:
Macromolecular Symposia. 91:1-26
Low molecular weight hydroxy terminated polyethylene (HTPE) containing on average an ethyl group every 16-18 carbon atoms, and a hydroxy functionality of 2.6, has been used to prepare polyurethane copolymers and block copolymers which have good solve
Publikováno v:
Journal of Applied Polymer Science. 47:1419-1425
The saturation water uptake and nonfreezing water, determined as a function of temperature in a polyurethane containing the pure polyethylene oxide soft segment (I) and in polyurethanes containing block copolymer polyethylene oxide/polypropylene oxid
Publikováno v:
Polymer. 33:306-313
A systematic study using differential scanning calorimetry has been performed on the annealing behaviour of an aromatic polyetherimide (Ultem 5001). Although crystallization from the melt did not occur, crystallinity was easily induced in the presenc
Publikováno v:
Polymer Composites. 11:240-249
Solvent stress cracking studies have been carried out in o-xylene and other solvents on polyetherimide (PEI) based materials including neat resin, woven fabric composites, and adhesively bonded systems. The results show crack growth in solvents at ve
Publikováno v:
ACS Symposium Series ISBN: 9780841227323
Polymers of Biological and Biomedical Significance
Polymers of Biological and Biomedical Significance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28c4f7b418ab3625079b0b30def1343f
https://doi.org/10.1021/bk-1994-0540.ch009
https://doi.org/10.1021/bk-1994-0540.ch009
Publikováno v:
Contributions to nephrology. 93
Autor:
N. S. Schneider, C. S. Paik Sung
Publikováno v:
Journal of Materials Science. 13:1689-1699
The thermoplastic polyurethanes are linear segmented copolymers which consist of alternating soft and hard segment units. The soft segment is commonly a low molecular weight polyether or polyester whereas the hard segment generally consists of an aro