Digital Library
Close Browse articles from a journal
 
<< previous    next >>
     Journal description
       All volumes of the corresponding journal
         All issues of the corresponding volume
           All articles of the corresponding issues
                                       Details for article 5 of 6 found articles
 
 
  Structure-Property Relationships in Low-Density Polyethylene
 
 
Title: Structure-Property Relationships in Low-Density Polyethylene
Author: Ram, Arie
Miltz, Joseph
Appeared in: International journal of polymeric materials
Paging: Volume 2 (1972) nr. 1 pages 39-47
Year: 1972-10-01
Contents: Modern techniques were adopted and utilized for molecular-weight characterization of commercial low-density (branched) polyethylenes. The index of long-chain branching was uniquely related to that of molecular-weight dispersion, Dn. Two groups of low-density polyethylenes were visualized, differing in width of MW distribution and in the branching index. An attempt was made to relate the flow properties, melt-flow index (MFI) and intrinsic viscosity [n], as well as some physical properties-density, tensile strength, ultimate elongation and resistance toenvironmental stress cracking-toatypical molecular parameter. In all correlations, the two groups are represented by two distinctly different curves. By combining the parameter g for long-chain branching with the weight average molecular weight, M¯γ, the flow parameters are unified into single curves. The mechanical properties studied were found to improve increasing M¯γ and with narrowing of the molecular-weight distribution.
Publisher: Taylor & Francis
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details for article 5 of 6 found articles
 
<< previous    next >>
 
 Koninklijke Bibliotheek - National Library of the Netherlands