Polymer Char Author Profile


Esther López

Chemist at Polymer Char

 

Esther Lopez a scientist at Polymer Char

Esther López joined Polymer Char in 2011, and since then she has been working in the analytical laboratory department focusing on polyolefin characterization by high-temperature GPC, her main area of expertise. She has also worked with other separation techniques such as TREF, CEF, TGIC, CFC, and SGIC 2D.

She is a technical specialist with solid experience in engineering, development, and validation of chromatographic methods applied to polymers, quality management and continuous improvement of existing techniques and equipment. She has extensive international experience in technical support, training, and product development through her more than ten years of experience.

Esther received a Bachelor’s Degree in Chemical Engineering from the Polytechnic University of Valencia, Spain, and a Master’s Degree in Analytical Chemistry from the University of Valencia.

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Publications

Publications written by or in collaboration with Alba Cárdenas:

 

Application Notes:

Gel Permeation Chromatography for Quality Control

 

Articles:

Relationship between microstructure changes and embrittlement during chemo-oxidative degradation of bimodal HDPE with short chain branches

 

Posters:

Improved Long-Chain Branch detection in LDPE via extended Mark-Houwink calibration with a broad linear HDPE

Improved Long-Chain Branch detection in LDPE via extended Mark-Houwink calibration with a broad linear HDPE

Solving industrial challenges in processing virgin and recycled polyolefins using TREF and GPC separation techniques.

Sample Homogeneity: A Key Factor in Solution-Based Separation Techniques such as Gel Permeation Chromatography (GPC)

GPC-IR analysis of PET and PE-PET blends, a new application field of filter-based IR detector

Supporting the sustainability of polyolefins: developing analytical methods for recycled materials

Analysis of UHMWPE and Bimodal HDPE by Gel Permeation Chromatography in a quality control environment

Characterization of Ethylene Vinyl Acetate copolymers by chemical composition distribution and molar mass distribution techniques

Filtration of polymer solutions and carbon black removal prior to a GPC analysis

Advanced data processing for dual-detector GPC-QC, Band-broadening correction method based on effective volume offset

Novel GPC triple detector approaches for branching analysis in PE

GPC analysis at different flow rates to overcome shear degradation

Infrared detection in high temperature GPC/SEC of Polyolefins

Direct comparison of IR and DRI detector for HT-GPC of Polyolefins

Moving from TCB to o-DCB Solvent in High-temperature GPC/SEC