𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Use of [13C]-NMR spectroscopy for the estimation of composition of ethyl acrylate/n-butyl methacrylate copolymers

✍ Scribed by K.J. Ivin; S. Pitchumani; C. Rami Reddy; S. Rajadurai

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
242 KB
Volume
17
Category
Article
ISSN
0014-3057

No coin nor oath required. For personal study only.

✦ Synopsis

~'opolymers of ethyl acrylate (Mt) and n-butyl methacrylate (M2) were prepared by benzoyl peroxide initiation in solution at 60 and copolymer compositions estimated b~ [tsC]-NMR spectroscopy. The kinetic behaviour is approximately ideal with r t = 1/r 2 = 0.47. Relaxation times Tz were determined for six of the carbons in M2 units and one in the M~ units: they range from 0.07 to 1.65 sec.

πŸ“œ SIMILAR VOLUMES

Sequence determination of acrylonitrile-
Sequence determination of acrylonitrile-(ethyl acrylate) copolymers by 13C-NMR spectroscopy and correlation with glass transition temperature
✍ A.S. Brar; Sunita πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 English βš– 486 KB

Abstraet--Acrylonitrile-(ethyl acrylate) copolymers of various compositions were prepared by bulk polymerization using benzoyl peroxide as initiator. Copolymer compositions were determined by elemental analyses; monomer reactivity ratios were determined using a nonlinear least square errors in varia

Analysis of Ξ²-CH2 signals in the 13C NMR
Analysis of Ξ²-CH2 signals in the 13C NMR spectra of the methyl methacrylate–ethyl acrylate copolymer as a tool for microstructure determination
✍ Marek Matlengiewicz; Giao Nguyen; Daniel Nicole; Norbert Henzel πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 208 KB πŸ‘ 1 views

The incremental method of the chemical shift calculation in the 13 C NMR spectra of the methyl methacrylate-ethyl acrylate copolymer, PMMA/EA, has been applied to the ␀-CH 2 carbons. A positive simulation of the DEPT sub-spectrum shows that it is possible to determine in this way the distribution of