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

Step-Growth Polymerization: Overview

Step-Growth Polymerization: Overview

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...

Anionic Chain-Growth Polymerization: Overview

Anionic Chain-Growth Polymerization: Overview

The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...

You might also read

Related Articles

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

Sort by

Same author

Supramolecular microgels for Pickering emulsion stabilization in the limited coalescence regime: The key role of microgel structure.

Journal of colloid and interface science·2026

Same author

Evidence based recommendations for health professionals to improve care of people with spinal cord injury and cognitive impairment: an update to the psychosocial care practice guide.

Spinal cord·2025

Same author

Skull Vibration Induced afternystagmus: A new clinical indicator of superior canal dehiscence.

European annals of otorhinolaryngology, head and neck diseases·2025

Same author

Complement therapeutic factor H-IgG proteins as pre-exposure prophylaxes against Lyme borreliae infections.

Journal of immunology (Baltimore, Md. : 1950)·2025

Same author

Complement therapeutic Factor H-IgG proteins as pre-exposure prophylaxes against Lyme borreliae infections.

bioRxiv : the preprint server for biology·2024

Same author

Injectable hydrogels based on alginates grafted with LCST side-chains of different chemistry.

Carbohydrate polymers·2024

Search research articles

Related Experiment Video

Updated: Jul 15, 2026

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

Synthesis and swelling behavior of pH-responsive polybase brushes.

S Sanjuan¹, P Perrin, N Pantoustier

¹Laboratoire de Physico-chimie des Polymères et des Milieux Dispersés, ESPCI, CNRS, UPMC, 10 rue Vauquelin, 75231 Paris Cedex 05, France.

Langmuir : the ACS Journal of Surfaces and Colloids

|April 12, 2007

Summary

This study synthesizes polybase brushes and analyzes their swelling behavior using advanced techniques. The results align with established scaling models for neutral and polyelectrolyte brushes under various conditions.

More Related Videos

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

Preparation of Thermoresponsive Nanostructured Surfaces for Tissue Engineering

Preparation of Thermoresponsive Nanostructured Surfaces for Tissue Engineering

Published on: March 1, 2016

Related Experiment Videos

Last Updated: Jul 15, 2026

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

Published on: October 10, 2013

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes

Published on: December 24, 2014

Preparation of Thermoresponsive Nanostructured Surfaces for Tissue Engineering

Preparation of Thermoresponsive Nanostructured Surfaces for Tissue Engineering

Published on: March 1, 2016

Area of Science:

Polymer Science
Surface Chemistry
Materials Science

Background:

Polymer brushes are crucial in various applications, but their swelling behavior requires detailed understanding.
Controlling polymer brush properties is key to tailoring material performance.

Purpose of the Study:

To synthesize poly(2-(dimethylamino)ethyl methacrylate)) (PDMAEMA) and poly(2-(trimethylamino)ethyl methacrylate)) (PTMAEMA) brushes.
To investigate the swelling behavior of these brushes under different solvent and salt conditions.
To compare experimental results with established scaling models for neutral and polyelectrolyte brushes.

Main Methods:

Surface-initiated Atom Transfer Radical Polymerization (ATRP) for brush synthesis.
Ellipsometry and neutron reflectivity for determining swollen thickness.
In situ quaternization for creating polyelectrolyte brushes.

Main Results:

PDMAEMA and PTMAEMA brushes exhibited swelling behavior consistent with scaling laws for neutral and polyelectrolyte brushes.
Salt-induced contraction of PTMAEMA brushes was observed at high salt concentrations.
PDMAEMA brushes demonstrated pH-responsive swelling, intermediate between neutral and polyelectrolyte behavior.

Conclusions:

The synthesized polybase brushes conform to theoretical scaling predictions.
The study provides insights into the fundamental swelling mechanisms of polymer brushes.
This work contributes to the design of responsive polymer materials for diverse applications.