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3. Characterization
3.1 Microstructure
Butadiene is known to lead to three different structures in radical polymerization (1,4-trans; 1,4-cis or 1,2) as illustrated in figure 3 .
The microstructure of a polybutadiene characterizes the random proportion of linkages in the polymer chain. It depends on the polymerization temperature, with the 1,4-trans structure remaining in the majority (table 2 ).
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Characterization
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References
Events
ANTEC (SPE Annual Technical Conference) http://www.4spe.org
Standards and norms
- Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers-Tension - ASTM D 412-06a -
- Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers - ASTM D 624-00 - 2007
- Standard Test Method for Rubber Property – Durometer Hardness - ASTM D 2240-05 -
- Standard Test Methods for DC Resistance or Conductance of Insulating Materials - ASTM D 257-07...
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Organizations – Federations – Associations (non-exhaustive list)
AFICEP (French Association of Rubber and Polymer Engineers and Managers) http://www.aficep.com
AFNOR (Association Française de Normalisation) www.afnor.fr
ASTM International...
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