Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Polymer Classification: Architecture

Polymer Classification: Architecture

Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Elastic Composites Containing Carbonous Fillers Functionalized by Ionic Liquid: Viscoelastic Properties.

Polymers·2025

Same author

Influence of Partial Disentanglement of Macromolecules on the Rheological, Thermal, and Mechanical Properties of Polypropylene-Polyethylene Blends.

Molecules (Basel, Switzerland)·2025

Same author

Injectable Liposome-Loaded Hydrogel Formulations with Controlled Release of Curcumin and α-Tocopherol for Dental Tissue Engineering.

Advanced healthcare materials·2024

Same author

Polypropylene Color Masterbatches Containing Layered Double Hydroxide Modified with Quinacridone and Phthalocyanine Pigments-Rheological, Thermal and Application Properties.

Materials (Basel, Switzerland)·2023

Same author

Effect of Silicone Oil on Properties and Performance of Ceramizable Styrene-Butadiene Rubber-Based Composites.

Polymers·2023

Same author

The Effect of Various Polyhedral Oligomeric Silsesquioxanes on Viscoelastic, Thermal Properties and Crystallization of Poly(ε-caprolactone) Nanocomposites.

Polymers·2022

Search research articles

Related Experiment Video

Updated: May 22, 2025

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Published on: March 8, 2019

Rheological Properties of Polyethylene Color Masterbatches Containing Pigment RED 122 (2,9-Dimethylquinacridone)

Magdalena Kozłowska¹, Magdalena Lipińska¹, Michał Okraska¹

¹Institute of Polymer and Dye Technology, Lodz University of Technology, 90-537 Lodz, Poland.

|March 13, 2025

Summary

Modification of RED 122 pigment with silanes (IBTMS, OTES) improved polyethylene masterbatch properties. Modified pigments enhanced storage modulus and viscosity, preventing particle agglomeration for better processing.

Keywords:

polyethylene masterbatches quinacridone pigments viscoelastic properties

More Related Videos

Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments

Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments

Published on: April 24, 2014

Solution Blow Spinning of Polymeric Nano-Composite Fibers for Personal Protective Equipment

Solution Blow Spinning of Polymeric Nano-Composite Fibers for Personal Protective Equipment

Published on: March 18, 2021

Related Experiment Videos

Last Updated: May 22, 2025

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Published on: March 8, 2019

Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments

Exfoliation of Egyptian Blue and Han Blue, Two Alkali Earth Copper Silicate-based Pigments

Published on: April 24, 2014

Solution Blow Spinning of Polymeric Nano-Composite Fibers for Personal Protective Equipment

Solution Blow Spinning of Polymeric Nano-Composite Fibers for Personal Protective Equipment

Published on: March 18, 2021

Area of Science:

Polymer Science
Materials Science
Rheology

Background:

Polyethylene (PE) masterbatches are crucial for polymer coloration.
Pigment RED 122 (2,9-dimethylquinacridone) can agglomerate, affecting masterbatch properties.
Surface modification of pigments is a strategy to improve dispersion and performance.

Purpose of the Study:

To investigate the effect of silane modification (IBTMS, OTES) on RED 122 pigment.
To analyze the impact of modified pigments on the viscoelastic and rheological properties of PE masterbatches.
To evaluate the influence of modified pigments on PE crystallization and thermal stability.

Main Methods:

Pulverization of RED 122 pigment in ball mills.
Modification of pigment surface using isobutyltrimethoxysilane (IBTMS) and octyltrietoxysilane (OTES).
Rheological analysis of PE masterbatches using oscillation rotational rheometry at 170 °C.
Application of continuous relaxation, Carreau, and Carreau-Yasuda viscosity models.
Investigation of PE crystallization and thermal stability via melting temperature (Tm) determination.

Main Results:

Silane modification significantly increased storage shear modulus (G') from 13.83 kPa to 58.74 kPa (IBTMS) and 49.67 kPa (OTES), preventing particle agglomeration.
Modified pigments influenced the relaxation behavior of molten PE and tended to form structures via particle-particle interactions.
Viscosity loop area increased significantly for OTES-modified pigment masterbatch (2574.44 Pas(1/s)) compared to the reference (464.88 Pas(1/s)).
Zero shear viscosity (µ₀) increased from 234.9 Pas to 305.9 Pas (IBTMS).

Conclusions:

Silane modification effectively prevents pigment agglomeration in PE masterbatches.
Surface-modified RED 122 pigment enhances viscoelastic properties and alters rheological behavior of PE.
The modified pigments show potential for improved processing and performance in polyethylene applications.