Kuhn–Mark–Houwink–Sakurada Coefficients for Determination of Molecular Parameters of cis-Polybutadiene Rubbers by Gel Permeation Chromatography
| Autor: | N. Makhiyanov, R. R. Davletbaev |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Polymers and Plastics
Analytical chemistry Mark–Houwink equation 02 engineering and technology Nuclear magnetic resonance spectroscopy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Nmr data Toluene 0104 chemical sciences Catalysis Gel permeation chromatography chemistry.chemical_compound Polybutadiene chemistry Materials Chemistry 0210 nano-technology Tetrahydrofuran |
| Zdroj: | Polymer Science, Series A. 60:117-126 |
| ISSN: | 1555-6107 0965-545X |
| Popis: | Industrial samples of polybutadiene rubbers with a high (95% or more) content of cis-1,4-units obtained on the neodymium-containing catalysts are studied by GPC and NMR spectroscopy (600 MHz). The GPC data obtained under different experimental conditions are analyzed taking into account the molecular weight calculated from NMR data. As a result, the coefficients of the Kuhn–Mark–Houwink–Sakurada equation for the solutions of cis-polybutadiene rubbers in toluene and tetrahydrofuran are refined. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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