Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

2.3K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.3K
Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

2.2K
Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists...
2.2K
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

2.6K
Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
2.6K
Polymers02:34

Polymers

36.2K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
36.2K
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

2.7K
Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
2.7K
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

3.4K
Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta...
3.4K

You might also read

Related Articles

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

Sort by
Same author

Intumescent Coatings and Their Applications in the Oil and Gas Industry: Formulations and Use of Numerical Models.

Polymers·2025
Same author

Thermal Insulation Performance of Epoxy-Based Intumescent Coatings: Influence of Temperature-Induced Porosity Evolution on Heat Transfer Resistance.

Polymers·2025
Same author

Effect of Glass Transition Temperature on Enhanced Dielectric Breakdown Strength and Lifetime of Multilayer Polymer Films.

ACS applied materials & interfaces·2023
Same author

Critical Salt Loading in Flexible Poly(vinyl alcohol) Sensors Fabricated by an Inkjet Printing and Plasma Reduction Method.

Micromachines·2022
Same author

Mechanical compressive behavior of pomelo peel and multilayer polymeric film/foam systems.

Bioinspiration & biomimetics·2022
Same author

Achieving Flat-on Primary Crystals by Nanoconfined Crystallization in High-Temperature Polycarbonate/Poly(vinylidene fluoride) Multilayer Films and Its Effect on Dielectric Insulation.

ACS applied materials & interfaces·2020

Related Experiment Video

Updated: Aug 27, 2025

Twin-Screw Extrusion Process to Produce Renewable Fiberboards
07:21

Twin-Screw Extrusion Process to Produce Renewable Fiberboards

Published on: January 27, 2021

6.5K

Oriented Tapes of Incompatible Polymers Using a Novel Multiplication Co-Extrusion Process.

Xinting Wang1, Erik J Price1, Gary E Wnek1

  • 1Center for Layered Polymeric Systems (CLiPS), Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH 44106, USA.

Polymers
|September 23, 2022
PubMed
Summary

Novel co-extrusion created strong polypropylene (PP) and high-density polyethylene (HDPE) composite tapes. These tapes exhibit enhanced stiffness and strength, outperforming commercial options due to unique interfacial interactions.

Keywords:
PP/HDPE blendPP/HDPE interfacemechanical propertiesmultiplication co-extrusionpost-extrusion orientation

More Related Videos

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

3.4K
Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers
10:09

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Published on: June 30, 2018

8.4K

Related Experiment Videos

Last Updated: Aug 27, 2025

Twin-Screw Extrusion Process to Produce Renewable Fiberboards
07:21

Twin-Screw Extrusion Process to Produce Renewable Fiberboards

Published on: January 27, 2021

6.5K
Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

3.4K
Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers
10:09

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Published on: June 30, 2018

8.4K

Area of Science:

  • Materials Science
  • Polymer Science
  • Composite Materials

Background:

  • Developing advanced polymer composites with enhanced mechanical properties is crucial for various industrial applications.
  • Polypropylene (PP) and high-density polyethylene (HDPE) are widely used polymers, but their incompatibility limits direct composite formation.
  • Novel processing techniques are needed to create strong interfaces between dissimilar polymers.

Purpose of the Study:

  • To develop a novel co-extrusion process for creating continuous tapes of polypropylene (PP) and high-density polyethylene (HDPE).
  • To investigate the structure-property relationships of the resulting PP/HDPE composite tapes.
  • To evaluate the mechanical performance and interfacial interactions of the oriented composite tapes.

Main Methods:

  • Utilized a novel multiplication co-extrusion process to produce PP/HDPE tapes.
  • Characterized the tape structure using Atomic Force Microscopy (AFM).
  • Performed orientation processing at 130 °C and analyzed mechanical properties (modulus, tensile strength) at various draw ratios.

Main Results:

  • The co-extrusion process resulted in co-continuous PP and HDPE domains (200-500 nm) with a large contact interface.
  • AFM revealed strong interfacial interactions between the incompatible PP and HDPE domains.
  • Oriented tapes showed significantly increased modulus (approx. 10 GPa) and tensile strength (approx. 540 MPa) at a draw ratio of 25.
  • The oriented tapes demonstrated superior stiffness and strength compared to commercial tapes without fibrillation.

Conclusions:

  • The novel co-extrusion process successfully created a fiber-like PP/HDPE composite structure with enhanced interfacial adhesion.
  • Epitaxial crystallization and large interfacial area enabled high-degree orientation, leading to superior mechanical properties.
  • The resulting oriented PP/HDPE tapes offer a promising alternative to conventional materials due to their enhanced performance and processing stability.