𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Analysis of Poly(carbon suboxide) by Small-Angle X-ray Scattering

✍ Scribed by Matthias Ballauff; Li Li; Sabine Rosenfeldt; Nico Dingenouts; Johannes Beck; Petra Krieger-Beck

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
143 KB
Volume
43
Category
Article
ISSN
0044-8249

No coin nor oath required. For personal study only.

✦ Synopsis

Carbon forms different oxides, of which carbon monoxide and carbon dioxide are among the most widely studied chemical compounds. The most stable oxide with more than two cumulative double bonds, known as carbon suboxide C 3 O 2 (1; Scheme 1), was synthesized for the first time nearly 100 years ago. In 1906, Diels et al. discovered that the dehydration of malonic acid with P 4 O 10 yields a colorless, pungent gas which they later identified as C 3 O 2 . [1] The molecule, whose electronic structure suggests it to be linear, after intensive spectroscopic studies, was found to be quasilinear with a Scheme 1. Structure of monomeric carbon suboxide (1) and the poly(a-pyronic) structure of poly(carbon suboxide) (2) as postulated by Ziegler.

πŸ“œ SIMILAR VOLUMES

Small-angle x-ray scattering by poly-L-a
Small-angle x-ray scattering by poly-L-alanine solutions
✍ H. Brumberger; L. C. Anderson πŸ“‚ Article πŸ“… 1972 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 203 KB πŸ‘ 1 views

The radius of gyration and "persistence length" of ply-L-alanine, calculated from small-angle x-ray stattering daia, have values of 56 A and 44 1, respectively, in dichloroacetic acid, and 78 A and -30 A in a 1 : 1 v/v mixture of trifluoroacetic acid and trifluoroethanol. This can be interpreted to

Small-angle X-ray scattering of polyethy
Small-angle X-ray scattering of polyethylene-polypropylene blends
✍ J. Janicki; St. Rabiej; A. WΕ‚ochowicz πŸ“‚ Article πŸ“… 1986 πŸ› John Wiley and Sons 🌐 English βš– 325 KB πŸ‘ 2 views

SAXS investigations of PE, P P and PE-PP blends were pcrformcd. The locations of the long period peaks of the blends and the pure components were compared. I t was shown that mutual mixing of the polymers does not considerably affect their fine structure. The analysis of the SAXS patterns of thermal

Analysis of Polymer Colloids by Small-An
Analysis of Polymer Colloids by Small-Angle X-Ray and Neutron Scattering: Contrast Variation
✍ Matthias Ballauff πŸ“‚ Article πŸ“… 2011 πŸ› John Wiley and Sons 🌐 English βš– 449 KB πŸ‘ 2 views

## Abstract We review recent work done on polymer colloids by small‐angle X‐ray scattering (SAXS) and small‐angle neutron scattering (SANS). Special emphasis is laid on the variation of scattering contrast for both methods. The theory of contrast variation as applied to SAXS and SANS is presented.

Structural characterization of polymacro
Structural characterization of polymacromonomer in solution by small-angle x-ray scattering
✍ Wataoka, Isao; Urakawa, Hiroshi; Kajiwara, Kanji; Schmidt, Manfred; Wintermantel πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 436 KB πŸ‘ 2 views

The polymerization of macromonomers provides polymers of extremely high branching density with regular branch length, branching number and branching interval. The intrinsic shape and size of these polymacromonomers were evaluated by small-angle X-ray scattering. The conformation of the backbone and