[HTML][HTML] 20 Years of polyolefin HPLC: Accomplishments and challenges

H Pasch, PE Bungu - European Polymer Journal, 2023 - Elsevier
The first publication on the interaction of polyolefins with stationary phases for high
performance liquid chromatography at high temperatures (HT-HPLC) appeared in 2003 …

Multidimensional analytical protocols for the fractionation and analysis of complex polyolefins

H Pasch, A Ndiripo, PSE Bungu - Journal of Polymer Science, 2022 - Wiley Online Library
Although produced from simple monomers that contain just carbon and hydrogen, polyolefin
have complex molecular structures that are characterized by distributions in molar mass …

Characterization of polyolefins

MI Malik, H Pasch - Molecular Characterization of Polymers, 2021 - Elsevier
Polyolefins constitute half of the annual polymer production worldwide. Polyolefins pose
special challenges for their analysis owing to their semicrystalline nature and insolubility in …

HPLC separation of ethylene–vinyl acetate copolymers according to chemical composition

T Macko, JH Arndt, R Brüll - Chromatographia, 2019 - Springer
Ethylene–vinyl acetate (EVA) copolymers are in dependence on their chemical composition,
amorphous, or semicrystalline materials. Therefore, fractionation techniques which are …

Comparison of chain microstructure between two propylene− ethylene copolymer resins with bimodal melting temperature distribution

W Liu, M Hong, Y Xue, L Shi, P Li, R Li, M Zhang, Y An… - Polymer, 2020 - Elsevier
Polypropylene (PP) has been commonly used as packaging materials due to the favorable
mechanical and optical properties related to its diverse and complex chain microstructure …

Exploring the Compositional Heterogeneity of Vis‐Broken Impact Poly (propylene) Copolymers by Advanced Fractionation Methods

MJ Phiri, H Pasch - Macromolecular Chemistry and Physics, 2016 - Wiley Online Library
Vis‐breaking or rheology control is an important technical process to improve the
processability of impact poly (propylene) copolymers (IPCs). In the vis‐breaking process the …

Eluent Gradient Interaction Chromatography

MI Malik, D Berek - Liquid Chromatography of Synthetic Polymers: Entropy …, 2023 - Springer
The chapter focuses on phenomenon of entropy/enthalpy compensation during the
chromatographic run by continuous change in the mobile phase (eluent) composition. The …

[HTML][HTML] Optimization and calibration of high-temperature liquid chromatographic separation of polypropylene and propylene based copolymers

SS Bhati - 2016 - tuprints.ulb.tu-darmstadt.de
Polyolefins are, by volume, the most significant group of polymers in the world, accounting
for more than 50% of the global polymer market, with Polypropylene (PP) and propylene …