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Video: Understanding Short Chain Branching in Polyolefins Part I
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Video: Understanding Short Chain Branching in Polyolefins Part III
Applications. This is Chapter 3 of 3 in a series of videos that explain what is Short Chain Branching Distribution, techniques for measuring it, and some applications.
Video: Understanding Short Chain Branching in Polyolefins Part II
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Webinar: What is Chemical Composition in Polyolefins and why it should be part of your GPC Analysis
Webinar Chemical Composition Distribution in Polylefins
Date: December 2022
Speaker: Alberto Ortín
Webinar: Modern Separation Techniques for Polyolefin Microstructure Characterization
Webinar Modern Separation Techniques
Date: November 2021
Speaker: Alejandro Fernández
Webinar: Recent developments in the characterization of Polyolefins. An overview of modern separation techniques.
Webinar ABPol
Date: March 2021
Speaker: Alberto Ortín
Webinar: Characterization of copolymers with carbonyl groups and other polyolefin applications by high temperature GPC-IR
SPE International Virtual Polyolefins Conference
Date: February 2021
Speaker: Esther López
Application Note: A Higher Standard in Gel Permeation Chromatography Analysis for Polyolefins
Published in Eurolab, European Laboratory Technology.
June 2014. Pages 51-52
A. Ortín
Webinar: Analytical and Engineering Advances in High Temperature GPC/SEC for Polyolefin Characterization
Webinar
Date: 2013
Speaker: Alberto Ortín
Application Note: GPC instrument with integrated Infrared Detector IR5 MCT for Polyolefin Analysis
Published in LCGC Europe
July 2012
Br. Monrabal, J. Sancho-Tello, J. Montesinos, R. Rarín, A. Ortín, P. del Hierro, M. Bas
Application Note: Crystallization Elution Fractionation (CEF) in Polyolefins
Published in LCGC EU
December 2011
B. Monrabal, N. Mayo, L. Romero, J. Sancho-Tello
Application Note: Advantages of Infrared Detection in GPC/SEC Analysis of Polyolefins
Presented at the 3rd ICPC Conference
November 2011
A. Ortín, B. Monrabal, J. Montesinos, P. del Hierro, N. Mayo
Article: Plastics Testing and Analysis
Published in Plastics Engineering. Society of Plastics Engineers (SPE)
October 2011. Pages 10-16
Article: Dedication to Polyolefins
Published in Plastics Engineering. Society of Plastics Engineering (SPE)
September 2011
Pages 58-59
Application Note: Chemical Composition Analysis of Polyolefins by Multiple Detection GPC-IR5
Published in LCGC NA
July 2011
W. Yau, A. Ortín, P. del Hierro
Application Note: Engineering Advances in High Temperature GPC/SEC Instrumentation
Published in The Column Advansatar Publications
Volume 7, Issue 7, 2011, Pages 8-15
April 2011
B. Monrabal, W. Yau
Application Note: Automated Cross-fractionation Chromatography (CFC)
Published in LCGC NA and EU
September 2010
A. Ortín, B. Monrabal, P. del Hierro
Application Note: High-Temperature GPC Analysis of Polyolefins with IR
Published in The Applications Notebook LCGC Asia Pacific
September 2009
B. Monrabal, J. Sancho-Tello
Analysis of the Chemical Composition Distribution in Semicrystalline Polymers: Crystallization Analysis Techniques- Temperature-Rising Elution Fractionation, Crystallization Analysis Fractionation, Dynamic Crystallization, Crystallization Elution Fractionation and Cross-Fractionation Chromatography
Published in: Encyclopedia of Analytical Chemistry: Applications, Theory and Instrumentation
(2025)
August 2025
Authors: Benjamin Monrabal
Investigation of the molecular architecture influence on the solid-liquid transition of ethylene 1-octene copolymers in butylal
Published in: Fluid Phase Equilibria
(2025) 114457
April 2025
Authors: Jana Zimmermann, Zengxuan Fan, Matti Jänicke, Michael Fischlschweiger
Biodegradation of pre-treated low-density polyethylene (LDPE)
Published in: Polymer Degradation and Stability
Vol. 236 (2025) 111292
February 2025
Authors: G. Buron-Moles, V. Vandenbossche, N. Gorret, L. Santonja-Blasco, T. González, X. Cameleyre, S. Guillouet
Relationship between microstructure changes and embrittlement during chemo-oxidative degradation of bimodal HDPE with short chain branches
Published in: Polymer
Vol. 313, 127752
November 2024
Authors: Ebuka P. Ezugwu, Eshter Lopez, Alberto Ortin, Mrinal Bhattacharya, Susan C. Mantell
Effect of solvent type on chemical composition distribution analysis of polyolefins using crystallization elution fractionation (CEF)
Published in: Polymer, Vol. 309
August 2024
Authors: Thipphaya Pathaweeisariyakul, Lalita Bangtai, Alberto Ortin
Relationship between Xylene Solubles and Crystallization Elution Fractionation of Polypropylene
Published in: ACS Publications, ACS Omega
Vol. 9, Issue 45
October 2024
Authors: Mengxue Shi, Mei Hong, Lin Liu, and Rongjuan Cong
Microstructural design characteristics of high-density polyethylene for thick-walled pressure pipe applications
Published in: Polymer Testing, Vol. 136
July 2024
Authors: Umang Agarwal, Jeroen van Westrenen
Catalytic Deconstruction of Ethylene Vinyl Acetate Copolymer and Polyethylene Mixtures via Hydroconversion: Challenges and Solutions
Published in: ACS Sustainable Chem. Eng. 2024, 12, 23, 8717–8728
May 2024
Authors: Pedro Moura, Pavel A. Kots, Brandon C. Vance, Zoé O.G. Schyns, Sean Najmi, Zachary R. Hinton, Caitlin M. Quinn, Thomas H. Epps III, LaShanda T.J. Korley, and Dionisios G. Vlachos
Quantifying the content of various types of polypropylene in high density polyethylene blends
Published in: Polymer Testing, Vol. 139
October 2024
Authors: Meysam Hashemnejad, Ami Doshi
A novel approach for accurate determination of polyethylene and polypropylene content in polyolefin blends and recyclates by cross-fractionation chromatography
Published in: Polymer Testing Volume 131, Article 108351
February 2024
Authors: Magdalena Gora, Davide Tranchida, Andreas Albrecht, Alejandro J. Müller, Dario Cavallo
High temperature-size exclusion chromatography with triple detection to assess the molecular architecture of low-density polyethylene: Insight into branching and processability correlations
Published in: Journal of Separation Science, Volume 47, Issue 2, 2300748
January 2024
Authors: Yogesha Subbaiah, Senthilkumar Shanmugam, Qua Eng hau
20 Years of polyolefin HPLC: Accomplishments and challenges
Published in: European Polymer Journal, Volume 200, 112491
November 2023
Authors: Harald Pasch, Paul Eselem Bungu
Influence of high temperature GPC/SEC detection modes on the accurate molar mass estimation of slurry phase multimodal HDPE reactor materials
Published in: Journal of Elastomers and Plastics
February 2024
Authors: Yogesha Subbaiah, Qua Eng Hau, Ghazai Miqad Al Otaibi
Article: Fast Analytics of High-Impact Polypropylene (HIPP)
Published in ACS Publications
May 2023
Composition analysis of post-consumer recycled blends of linear low- and low-density polyethylene using a solution-based technique
Published in Wiley Journal of Applied Polymer Science
May 2023
Author: Meysam Hashemnejad
Research & Development
Lyondellbasell
Quantification of PP contamination in recycled PE by TREF analysis for improved the quality and circularity of plastics
Published in Polymer Testing
Volume 100, 107273
August 2021
Author: Rafael Juan , Beatriz Paredes , Rafael A. García-Muñoz , Carlos Domínguez
LATEP, Polymer Technology Laboratory
Rey Juan Carlos University
Chemical Composition Separation of EP Copolymers by CEF and HT-SGIC: Crystallization versus Adsorption
Published in: Macromolecular Chemistry and Physics 2013
Volume 214, Pages 2165-2171
Authors: S. Cheruthazhekatt, N. Mayo, B. Monrabal, H. Pasch.
Poly(propylene) Heterophasic Copolymers: Molecular Structure Analysis through Fractionation Techniques
Published in: Macromolecular Symposia. Polyolefin Characterization, ICPC 2012.
Volume 330, 2013, Pages 30-41.. Wiley-VCH.
Authors: S. Liberman, A. P. de Azeredo, F. P. Dos Santos, M. A. da Silva, B. Monrabal, N. Mayo
Characterization of Chemical Composition along the Molar Mass Distribution in Polyolefin Copolymers by GPC Using a Modern Filter-Based IR Detector
Published in: Macromolecular Symposia. Polyolefin Characterization, ICPC 2012.
Volume 330, 2013, Pages 63-80. Wiley-VCH.
Authors: A. Ortín, J. Montesinos, E. López, P. del Hierro, B. Monrabal, J.R. Torres-Lapasió, M.C. García-Álvarez-Coque.
Filter-based infrared detectors for high-temperature size exclusion chromatography analysis of polyolefins: calibration with a small number of standards and error analysis.
Published in: Journal of Chromatography A.
Volume 1257, 2012, Pages 66-73.
Authors: Alberto Ortin, E. Lopez, B. Monrabal, J. R. Torres-Lapasio, M. C. Garcia-Alvarez-Coque.
Crystallization Elution Fractionation and Thermal Gradient Interaction Chromatography. Techniques Comparison.
Published in: Macromolecular Symposia. Polyolefin Characterization, ICPC 2010.
Volume 312, 2012, Pages 115-129. Wiley-VCH.
Authors: B. Monrabal, N. Mayo, R. Cong.
Characterization of Polypropylene–Polyethylene blends by Temperature Rising Elution and Crystallization Analysis Fractionation
Published in: Analytical and Bioanalytical Chemistry. Separation Science of Macromolecules.
ISSN 1618-2642, Volume 399, Number 4, 2011, Pages 1557-1561.
Authors: B. Monrabal, P. del Hierro.
Advances in Crystallization Elution Fractionation
Published in: Macromolecular Symposia. Polyolefin Characterization, ICPC 2008.
Volume 282, 2009, Pages 14-24. Wiley-VCH.
Authors: B. Monrabal, L. Romero, N. Mayo, J. Sancho-Tello.
Application of a Multiple Linear Regression Model to Fixed Bands IR Detector Data in GPC-IR Analysis of Polyolefins
Published in: Macromolecular Symposia. Polyolefin Characterization, ICPC 2008.
Volume 282, 2009, Pages 65-70. Wiley-VCH.
Authors: A. Ortín, B. Monrabal, J. Montesinos, P. del Hierro.
Synthesis and Characterization of Ethylene/Propylene Copolymers in the Whole Composition Range
Published in: Macromolecular Symposia. Polyolefin Characterization, ICPC 2006.
Volume 257, 2007, Pages 122-130. Wiley-VCH.
Authors: M. J. Caballero, I. Suarez, B. Coto, R. V. Grieken, B. Monrabal.
Crystallization Elution Fractionation. A New Separation Process for Polyolefin Resins
Published in: Macromolecular Symposia. Polyolefin Characterization, ICPC 2006.
Volume 257, 2007, Pages 71-79. Wiley-VCH.
Authors: B. Monrabal, J. Sancho-Tello, N. Mayo, L. Romero.
Development of an Automated Cross-Fractionation Apparatus (TREF-GPC) for a Full Characterization of the Bivariate Distribution of Polyolefins
Published in: Macromolecular Symposia. Polyolefin Characterization, ICPC 2006.
Volume 257, 2007, Pages 13-28. Wiley-VCH.
Authors: A. Ortín, B. Monrabal, J. Sancho-Tello.
Microstructure Characterization of Polyolefins. TREF and CRYSTAF. Progress in Olefin Polymerization Catalysts and Polyolefin Materials
Published in: Asian Polyolefin Workshop. Studies in Surface Science and Catalysis.
Volume 161, 2006, Pages 35-42.
Author: B. Monrabal
用结晶分级仪快速表征聚烯烃树脂 的分子链结构
Rapid Characterization of Polyolefins and their Blends using CRYSTAF.
Published in: Petrochemical Technology, China. 2004.
Authors: Wei Dong, Luo Hangyu, Xin Xuhong, Sheng Jianfang, Huang Honghong, Guo Meifang.
Effect of molecular weight and average comonomer content on the Crystallization Analysis Fractionation (CRYSTAF) of ethylene α-olefin copolymers
Published in: Polymer, 2003
Volume 44, Issue 8, Pages 2391-2401
Authors: S. Anantawaraskul, J. B. P. Soares, P. M. Wood-Adams, B. Monrabal.
Performance of Crystallization Analysis Fractionation and Preparative Fractionation on the Characterization of γ-Irradiated Low-Density Polyethylene
Published in: Journal of Applied Polymer Science.
Volume 94, Issue 4, 2004, Pages 1803-1814.
Authors: F. Vilaplana, V. Morera-Escrich, P. del Hierro, B. Monrabal, A. Ribes-Greus
Crystallizability of Ethylene Homopolymers by Crystallization Analysis Fractionation
Published in: Journal of Polymer Science.
Part B: Polymer Physics. Volume 39, Issue 14, 2001, Pages 1616-1628.
Authors: J. Nieto, T. Oswald, F. Blanco, J. B. P. Soares, B. Monrabal.
Analysis of Polyolefin blends by Crystallization Analysis Fractionation
Macromolecular Materials and Engineering.
Volume 279, 2000, Pages 46-51.
H. Pasch, R. Brüll, U. Wahner, B. Monrabal.
TREF and CRYSTAF technologies for Polymer Characterization
Published in: Encyclopedia of Analytical Chemistry
2000 Issue, Pages 8074 – 8094
Author: B. Monrabal
Characterization of homogeneous ethylene/1-octene copolymers made with a single-site catalyst. CRYSTAF analysis and calibration
Published in: Journal of Polymer Science.
Part A: Polymer Chemistry, Volume 37, Issue 1, 1999, Pages 89-93.
Authors: B. Monrabal, J. Blanco, J. Nieto, J. B.P. Soares.
Polyolefin analysis by single-step Crystallization Fractionation
Published in: Journal of Polymer Science, 1999
Volume 37, Issue 6, Pages 539-552
Authors: L. J. D. Britto, J. B. P. Soares, A. Penlidis, B. Monrabal.
Crystallization analysis fractionation of poly(ethylene-co-1-octene) made with single-site-type catalysts: a mathematical model for the dependence of composition distribution on molecular weight
Published in: Macromolecular Chemistry & Physics, 1998
Volume 199, Issue 9, Pages 1917-1926
Authors: J. Soares, B. Monrabal, J. Blanco, J. Nieto
Chemical Composition Distribution in Complex Polyolefin Resins. Characterization of Blends and Dual reactor (single site-Ziegler type) resins by CRYSTAF methods.
Published in: Houston Polyolefins & Elastomers Conference Proc.
1998, Pages 179-188.
Author: B. Monrabal.
Chemical Composition Distribution Analysis in Polyolefins: Introduction to Crystallization Analysis Fractionation
Published in: New Trends in Polyolefin Science and Technology
1996, Pages 119-133.
Author: B. Monrabal
CRYSTAF: A new approach to the Composition Analysis of Semicrystalline polymers
Published in: Macromolecular Symposia.
Volume 110, 1996, Pages 81-86.
Author: B. Monrabal.
Crystallization Analysis Fractionation: A new technique for the analysis of branching distribution in polyolefins
Published in: Journal of Applied Polymer Science, 1994
Volume 52, Issue 4, Pages 491-499
Authors: Benjamin Monrabal
Poster: processing virgin and recycled polyolefins using TREF and GPC
Poster
Presented at 9th ICPC
2025
Poster: temperature calibration for CCD in solution based separation
Poster
Presented at 9th ICPC
2025
Poster: Improved long-chain branch detection in LDPE via exteded Mark-Houwink calibration
Poster
Presented at 9th ICPC
2025
Poster: Chemical Composition Distribution in Polyolefins, a key microstructural property
Poster
Presented at Advances in Polyolefins
2024
Poster: Supporting the sustainability of polyolefins: developing analytical methods for recycled materials
Poster
Presented at the 8th ICPC 2023
Updated for Advances in Polyolefins 2024
Poster: Reduction of solvent consumption in polyolefin characterization techniques
Poster
Presented at the 8th ICPC
2023
Poster: Advances in Dynamic Crystallization technique for the characterization of the Chemical Composition Distribution
Poster
Presented at the 8th ICPC
2023
Poster: GPC-IR analysis of PET and PE-PET blends, a new application field of filter-based IR detector
Poster
Presented at the 8th ICPC
2023
Poster: Studies on the use of filter-based IR detector for short-chain branching characterization of polyolefin copolymers with HT-SEC
Poster Presented at the 7th ICPC
2018
Poster: Characterization of Ethylene Vinyl Acetate copolymers by chemical composition distribution and molar mass distribution techniques
Poster
Presented at the 7th ICPC
2018
Poster: Assessing the co-crystallization on blends of ethylene 1-octene copolymers by CRYSTAF
Poster
Presented at the 7th ICPC
2018
Poster: Novel GPC triple detector approaches for branching analysis in PE
Poster
Presented at the 6th ICPC
2016
Poster: Deconvolution of PP-PE mixtures using measured chromatograms by multiple band IR detector
Poster
Presented at the 6th ICPC
2016
Poster: Infrared detection in high temperature GPC/SEC of Polyolefins
Poster
Presented at the GPC Conference
2015
Poster: GPC analysis at different flow rates to overcome shear degradation
Poster
Presented at the 5th ICPC
2014
Poster: Direct comparison of IR and DRI detector for HT-GPC of Polyolefins
Poster
Presented at the 5th ICPC
2014
Poster: Moving from TCB to o-DCB Solvent in High-temperature GPC/SEC
Poster
Presented at the 4th ICPC
2012
Poster: Influence of Comonomer Type on the Calibration of Filter-based IR Detector in GPC-IR
Poster
Presented at the 4th ICPC
2012
Poster: Improvements in Sample Preparation of Polyolefins to prevent Polymer Degradation prior to GPC/SEC and CEF analysis
Poster
Presented at the 4th ICPC
2012
Poster: Applications of the Integrated IR5 MCT Detector in GPC/SEC with Improved Sensitivity and Stability for Polyolefin Analysis
Poster
Presented at the 4th ICPC
2012
Poster: Advances in Polyolefin Characterization – CFC and HT-HPLC Techniques
Poster Presented at the 8th International Colloquium on Heterogenous Ziegler-Natta Catalysts
2012
Poster: Advanced High Temperature Gel Permeation Chromatography (GPC/SEC) System for Polyolefin Analysis
Poster
Presented at the Agilent Technologies EMEA IDO Training Conference
2012
Poster: Improved Detection in GPC-SEC of Polyolefins by integrated Infrared Detector
Poster
Presented at the APST
2011
Advantages of Infrared Detection in GPC of Polyolefins
Poster
Presented at the 3rd ICPC
2010
Poster: Development of a MCT-IR Detector for GPC-SEC Analysis in PE
Poster
Presented at the 1st ICPC
2006