Short Course
A Short Course on Polyolefin Characterization techniques is scheduled on November 7th, at the same venue where ICPC is taking place, in the Hyatt on the Bund Hotel in Shanghai. For registering in the Short Course, please visit the link Fees & Registration.
Introduction to Polyolefin Microstructure
João Soares
• Molecular Weight Distribution.
• Chemical Composition Distribution.
• Bivariate Distribution (Long Chain Branching, Block co-polymers…).
GPC - Basics
Wallace Yau
• Molecular Weight average concept.
• Basic GPC mechanism.
• GPC retention.
• Band broadening.
• Different ways to do calibrations.
• Basics on IV concept.
• Universal calibration.
• Basic LS.
• Mark Houwink Plot.
GPC – Practical Considerations
Wallace Yau
• System Considerations:
- Choosing an Appropiate Column Set.
- Pump Degradation.
- Thermal Stability.
- Data Acquisition.
• Sample Considerations:
- Solvent and Solvent Preparation.
- Polymer Degradation.
• Calculation Considerations:
- Flow rate analysis.
- Mass analysis.
- Viscosity analysis.
- MW analysis.
- Copolymer analysis.
- Band broadening corrections.
GPC – Applications in Polyolefins
Willem deGroot
• Commercial Polymers:
- HDPE/LDPE/LLDPE/Metallocenes.
- iPP/ICP/RCP.
• System Set Up:
- Detector Alignment - Peak position.
- Hamielec Band Broadening method.
- Systematic method.
• Detector Calibration.
• LCB analysis.
• Relationship between Mw and Rheology.
• Practical examples and applications.
TREF / CRYSTAF / CEF
Benjamin Monrabal
• Fundamentals of Crystallization techniques.
• TREF.
• CRYSTAF.
• Calibration and Calculations.
• Kinetic effects.
• Hyphenated techniques.
• Applications.
• CEF and High Throughput analysis.
Cross Fractionation
Alberto Ortín
• System Considerations:
- Types of Crossfractionation.
- Crossfractionation Modes.
- Resolution in 2-dimensions.
• Calculation Considerations:
- MW and Crystallinity reconstruction.
- Calibration of 2-D system.
- 3D Analysis.
• Practical Examples:
- Blends.
- Copolymers.
High Temperature HPLC of Polyolefins
Willem deGroot
• Solvent gradient applications.
• Thermal gradient / Interaction Chromatography.
Preparative Fractionation
Benjamin Monrabal
• Solvent–Non solvent (Molecular Weight Fractionation).
• Dissolution Fractionation (Comp. Fractionation TREF).
• Crystallization Fractionation (Composition Fractionation CRYSTAF).
