Polyolefin Characterization Webinars

Polyolefin Characterization Webinars

Latest: What is Chemical Composition in Polyolefins, and why it should be present in your HT GPC/SEC Analysis.


Overview:

The most discriminating structural property in polymers is probably missing in your GPC Analysis. Resins that seem nearly identical by a standard GPC analysis can only be fully differentiated when adding Short Chain Branching information.

Chemical Composition Distribution is a critical dimension for the study of the microstructure of polyolefins, but it is often overlooked because its impact is not widely known. This presentation will explain what Short Chain Branching Distribution is, why it is so relevant to understanding the microstructure of a resin, and how it can be obtained. Two approaches for analyzing the CCD will be presented, first by high-temperature GPC-IR, and then by the most powerful techniques based on crystallization and adsorption chromatography; TREF, CRYSTAF, CEF, and TGIC.

Duration: 1 Hour
Speaker: Ph.D. Alberto Ortín

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Key Learning Objectives:

  • Learning what Chemical Composition Distribution is and why it is extremely revealing in polyolefin analysis, especially for LLDPEs and PP Copolymers.
  • Learning why a standard GPC analysis alone is not capable of obtaining CCD because it is limited to molar mass, which doesn’t discriminate similar microstructures.
  • Learning the appropriate methods for obtaining, in addition to molar mass, the comonomer content and short chain branching (CCD information).

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About the Speaker

 

Alberto Ortin received a Master’s Degree in Electronics Engineering at the Polytechnic University of Valencia, Spain, and a Master’s Degree in Analytical Chemistry from the University of Valencia. He received his Ph.D. in Chemistry from the same University of Valencia in 2014.

He is now a scientist at Polymer Char, where he has accumulated 25 years of experience in the development of instruments, software, and detectors for different polyolefin characterization techniques, including GPC, TREF, and cross-fractionation. He has authored several papers on polyolefin separation methods at high temperature and is a major contributor to the technical program of the International Conference on Polyolefin Characterization.

Previous Webinars:

Polyolefin Microstructure Characterization Tools for a QC Environment

Duration: 1 hour
Speaker: MEng. Alejandro Fernández
Platform: Microsoft Teams

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In this webinar you will learn:

  • The most appropriate and beneficial techniques for quality control in the production of resins.
  • How to optimize the performance of a resin.
  • To use the most telling parameters for obtaining essential information about a resin’s microstructure
  • Why Melt Index and Density, although common parameters, are not the best for defining a product’s performance.

 

Modern Separation Techniques for Polyolefin Microstructure Characterization

Duration: 1 Hour
Speaker: MEng. Alejandro Fernández
Platform: Microsoft Teams

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In this webinar you will learn about:

  • Molar Mass Distribution by high-temperature gel permeation chromatography (HT-GPC) with infrared (IR) detection.
  • Chemical Composition Distribution (CCD) techniques by CEF, CRYSTAF or TREF, especially important in polyolefin copolymers or blends.
  • Bivariate Distribution techniques will also be reviewed because they provide a higher-level knowledge through 3d results that combine Molar Mass with Chemical Composition in a single experiment, such as CFC or SGIC 2D, delivering the full picture of the polyolefin microstructure.

About the Speaker

 

Alejandro Fernández has a Master’s Degree in Chemical Engineering from the Polytechnic University of Valencia, Spain. At university, he combined his studies with his passion for traveling, spending one year at the University of Bologna (Italy) and finishing his degree with a six-month stay at the University of Massachusetts Amherst (USA).

Having worked as an engineer in Polymer Char for the past 10 years, Alejandro has acquired vast experience in polyolefin characterization techniques and instrumentation. He is involved in important research projects in the analytical department and plays a principal role in the after-sale support to Polymer Char’s customers and official partners globally.

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