Carbon-13 spin-lattice relaxation rates (1/ T 1) and nuclear Overhauser enhancement (NOE) measurements were performed on poly(4-methyl-1-pentene) above the glass transition temperature in order to explain the segmental motion of the molecule by means of high resolution nuclear magnetic resonance ...
The polyalkylene derivative may for example be a polypropylene, a polybutene, a polyiso-butene or a polymer of 4-methyl pentene-1. By carrying out the reaction under these conditions the process results in a reduced amount of resin... K Alan - EP 被引量: 53发表: 1983年 13C NMR Study...
Broad-line NMR investigation of the amorphous component of poly(trans-1,4-butadiene) and poly(4-methyl pentene-1) crystals wetted by carbon disulfideBroad-line (proton) NMR measurements were made at temperatures from -15 to -96°C on crystals of poly(4-methyl pentene-1) wetted with a non...
The systems 4-methyl-1-pentene/4-methyl-1-hexene and isopropyl vinyl ether/sec-butyl vinyl ether have been studied as copolymers and as homopolymer mechani... G. Natta,G. Allegra,I. W. Bassi,... - 《Macromolecules》 被引量: 195发表: 1969年 Stereospecific templated synthesis of a trirut...
(a) by the analysis of the peaks attributable to the side chain methylene groups directly bonded to the main chain in the 13C-NMR spectrum produced by the measurement in 1,2,4-trichloro-benzene, (i) a novel main peak not attributable to the isotactic structure thereof is positioned on ...
A process for synthesizing syndiotactic 1,2-polybutaidene, the process comprising the steps of (1) polymerizing monomer consisting essentially of 1,3-butadeine monomer within an organic solvent that i
Poly(4-methyl-13-pentadiene)Poly(4-methyl-1-pentene)13 C NMR analysis of poly(4-methyl-1,3-pentadiene) (poly(4-MPD)) obtained by using the C 2 symmetric zirconocene based catalytic system: rac -[CH 2 (3- tert -butyl-1-indenyl) 2 ]ZrCl 2 ( 1 ) / 13 C enriched methylaluminox...
Carbon‐13 NMR investigation of spin‐lattice relaxation mechanism of poly(4‐methyl‐1‐pentene)doi:10.1002/app.1994.070511103Sun MaM.-C. ChenS.-P. Wang
poly(4-methyl-1-pentene), gas permeation, Xe sorption, (129)Xe NMR spectroscopy, (129)Xe NMR chemical shiftPolymer Journal, official journal of the Society of Polymer Science, Japan publishes high quality papers in all areas of polymer and macromolecular research....
NMRα‐olefinspolyolefinspolypropylene copolymersThe influence of the comonomer in the synthesis of poly(propylene‐co−1‐pentene) copolymers, with rac‐(dimethylsilylbis(1‐indenyl))ZrCl/Methylaluminoxane at low temperature, has been studied. Changes in the catalyst activity and molecular weight ...