Related Experiment Video

Updated: May 31, 2026

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
11:17

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction

Published on: January 19, 2016

Dynamic crossovers and activated regimes in a narrow distribution poly(n-butyl acrylate): an ESR study

Laura Andreozzi, Ciro Autiero, Massimo Faetti

    Journal of Physics. Condensed Matter : an Institute of Physics Journal
    |June 22, 2011
    PubMed

    More Related Videos

    Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels11:34

    Controlled Synthesis and Fluorescence Tracking of Highly Uniform Poly(N-isopropylacrylamide) Microgels

    Published on: September 8, 2016

    Microfluidic Preparation of Liquid Crystalline Elastomer Actuators12:04

    Microfluidic Preparation of Liquid Crystalline Elastomer Actuators

    Published on: May 20, 2018

    Related Concept Videos

    Cationic Chain-Growth Polymerization: Mechanism00:57

    Cationic Chain-Growth Polymerization: Mechanism

    The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...
    Polymers: Molecular Weight Distribution01:10

    Polymers: Molecular Weight Distribution

    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.
    Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

    Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

    Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
    Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
    Stability of Conjugated Dienes01:28

    Stability of Conjugated Dienes

    Introduction
    A comparison of the enthalpies of hydrogenation of dienes reveals that conjugated dienes release less heat on hydrogenation, rendering them more stable than their nonconjugated analogs.
    Radical Chain-Growth Polymerization: Mechanism01:09

    Radical Chain-Growth Polymerization: Mechanism

    The radical chain-growth polymerization mechanism consists of three steps: initiation, propagation, and termination of polymerization. The polymerization initiates when a free radical generated from the radical initiator adds to the unsaturated bond in the monomer. The unpaired electron of the free radical and one π electron in the unsaturated bond creates a σ bond between the free radical and the monomer. As a result, the other π electron in the unsaturated bond converts this species into the...
    Olefin Metathesis Polymerization: Overview01:13

    Olefin Metathesis Polymerization: Overview

    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 of a...