Project Details:

Repeatability and reproducibility of sample preparation and analysis in high-temperature SEC

Project No.:2005-011-3-400
Start date:2006-01-01
End date:0000-00-00
Division:Polymer Division
Objective:

Standardization of the experimental conditions for the HT-SEC analysis of polyolefins. The particular emphasis shall be on the sample preparation with regard to dissolution temperature and time, the sample measurement with regard to column temperature and the column set, and with regard to the detection technique (RI, ELSD, Visco, LS). Although there is an ASTM method for the analysis of polyolefins by HT-SEC (ASTM D 6474), procedures for sample preparation are not addressed adequately. The application of different detectors in HT-GPC is not addressed at all.

Description:

Round robin tests on standard HDPE, standard PP, standard LLDPE, ultrahigh-MW PE

  1. step: measurements according to existing procedures in the different labs
  2. step: standardization of measurement and detection
  3. step: standardization of sample preparation
Progress:

October 2009 - A draft report of phase 1 has been prepared and sent to the SubCommittee on Molecular Characterization of Polymers for comments. Once the comments have been received this will be communicated to the participants.

May 2011 - Phase 1 report (pdf-373kB) has been issued out to all the participants. Phases 2 and 3 will commence soon and will run concurrently in order to avoid delays in collecting data. The results were presented at the 3rd International Conference on Polyolefins Characterisation (ICPC), Shangai, China, 7-10 November 2010. 

Chairman: