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

Polymer Classification: Architecture01:14

Polymer Classification: Architecture

2.6K
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...
2.6K
Polymers02:34

Polymers

35.0K
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...
35.0K
Polymers: Molecular Weight Distribution01:10

Polymers: Molecular Weight Distribution

3.2K
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.
3.2K
Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

2.4K
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.4K
Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

3.4K
Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...
3.4K
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

3.2K
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...
3.2K

You might also read

Related Articles

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

Sort by
Same author

Surface-Induced Donor-Acceptor Charge-Transfer Interaction in Crystallization-Driven Two-Dimensional Assembly of Poly(L-Lactide) and Its Impact on Piezoelectric Performance.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Ion size controls the conductivity of solid polymer electrolytes.

Soft matter·2026
Same author

Nanobubble size controls gas hydrate nucleation in supercooled water.

Physical chemistry chemical physics : PCCP·2026
Same author

Circularly Polarized Luminescence (CPL)-Active Homo- and Heterostructures by Surface-Catalyzed Secondary Supramolecular Polymerization.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Regulating Peptide Self-Assemblies by Halogen Bonding and Other Halogen Effects.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

Sequence-defined phase behavior of poly(<i>N</i>-isopropylacrylamide-<i>co</i>-acrylamide) in water.

Soft matter·2026
Same journal

Potentials of Machine Learning in Predicting Key Features of Synthetic Antimicrobial Polymers.

ACS polymers Au·2026
Same journal

Polymer-Grafted Nanoparticles as All-in-One Nanoplatforms.

ACS polymers Au·2026
Same journal

Impact of Ion Pairs on the Properties of Dynamic Ion Gels Formed by Complex Coacervation of Oppositely Charged Poly(Ionic Liquids).

ACS polymers Au·2026
Same journal

Toward Greener Rubber: Impact of Resin Type and Amount on Curing, Network Structure, and Viscoelastic Properties in SBR compounds.

ACS polymers Au·2026
Same journal

Mechanically Enhanced Ultrashort Peptide Hydrogels for pH-Triggered Release.

ACS polymers Au·2026
Same journal

Thermally Activated Stress Relaxation and Creep in Ideal Hydrogel Elastomers: Rupture of Tensile Strands.

ACS polymers Au·2026
See all related articles

Related Experiment Video

Updated: Jun 5, 2025

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
06:55

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

Published on: September 26, 2016

7.8K

Polymer Science and Engineering in India

Anindita Das, Tarak K Patra

    ACS Polymers Au
    |December 16, 2024
    PubMed
    Summary

    No abstract available in PubMed .

    More Related Videos

    Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization
    07:28

    Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization

    Published on: November 27, 2015

    13.2K
    3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization
    07:28

    3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization

    Published on: February 18, 2022

    3.7K

    Related Experiment Videos

    Last Updated: Jun 5, 2025

    Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
    06:55

    Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level

    Published on: September 26, 2016

    7.8K
    Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization
    07:28

    Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization

    Published on: November 27, 2015

    13.2K
    3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization
    07:28

    3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization

    Published on: February 18, 2022

    3.7K