Zobrazeno 1 - 10
of 31
pro vyhledávání: '"E. J. Vandenberg"'
Autor:
E. J. Vandenberg
Publikováno v:
Journal of Polymer Science Part C: Polymer Symposia. 1:207-236
Autor:
Dong Tian, E. J. Vandenberg
Publikováno v:
Macromolecules. 32:3613-3619
Hydroxypolycarbonates (HPC) offer to the biomedical area hydroxyl functional polymers not now readily available to bind drugs, proteins, or carbohydrate polymers chemically or via hydrogen bonding to facilitate drug delivery and utility with subseque
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 32:749-758
Copolymers of 3,3-bis-hydroxymethyloxetane (BHMO) with 3-methyl-3-hydroxymethyloxetane (MHMO) or with 3-ethyl-3-hydroxymethyloxetane (EHMO) were characterized by x-ray fiber diffraction, DSC and 13 C solid-state NMR. The copolymers are statistically
Publikováno v:
Journal of Applied Polymer Science. 48:107-111
Gas transport properties for poly(3-hydroxyoxetane) (PHO) were measured for five gases at 35°C. While PHO has very low gas permeability coefficients, they are larger than those reported for polyacrylonitrile (PAN), poly(vinyl alcohol) (PVA1) and cop
Autor:
J. C. Mullis, E. J. Vandenberg
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 29:1421-1438
Autor:
E. J. Vandenberg
Publikováno v:
Rubber Chemistry and Technology. 64:56-64
I am greatly honored to have been selected to receive the prestigious Charles Goodyear Medal of the Rubber Division of the American Chemical Society. My work in the rubber field falls into two general areas: (1) early discoveries on the redox emulsio
Poly(3-hydroxyoxetane)—an analog of poly(vinyl alcohol): Synthesis, characterization, and properties
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 27:3113-3149
The spontaneous polymer formed from 3-hydroxyoxetane (HO), as first reported by Wojtowicz and Polak, is linear, low molecular weight, water-soluble, atactic, poly(3-hydroxyoxetane) (PHO) of high crystallinity with OCH2CH(OH)CH2OH end units. The highl
Autor:
E. J. Vandenberg
Publikováno v:
Journal of Polymer Science: Polymer Chemistry Edition. 23:951-970
The cyclic acetone ketal of 1,4-dihydroxy-2,3-epoxybutane (DMTO) polymerizes with i-Bu3Al-0.7 H2O catalyst by a cationic mechanism at −78°C to a moderate molecular weight (ηinh up to 0.7), atactic (based on 13C-NMR) polymer (PDMTO). At higher tem
Autor:
E. J. Vandenberg
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 24:1423-1431
The bimetallic catalysts of Osgan and Teyssie, (RO)2Al-O-Zn-O-Al(OR)2, are effective, unusual catalysts for polymerizing epoxides. The polymer obtained from propylene oxide when R = n-Bu is preponderantly isotactic and highly crystalline and thus, la
Autor:
E. J. Vandenberg
Publikováno v:
Pure and Applied Chemistry. 48:295-306
The cationic ring opening polymerization and copolymerization of the cis and trans isomers of 1,4-dichloro-2,3-epoxybutane (CD and TD) with an iBu3Al - 0.7 H2O catalyst at -78°C has led to an interesting new class of polyethers containing 50% chlori