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

Recrystallization: Solid–Solution Equilibria01:10

Recrystallization: Solid–Solution Equilibria

1.1K
Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
1.1K
Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

2.9K
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
2.9K
Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

2.4K
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...
2.4K
Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

2.1K
Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
2.1K
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

2.1K
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,...
2.1K
Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

2.5K
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...
2.5K

You might also read

Related Articles

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

Sort by
Same author

Crystalline Structural Evolution in Polythiophene-Based Conjugated Polymer Blends During Rubbing.

Macromolecular rapid communications·2026
Same author

Harnessing Thin-Film Polymorphism via Regulating Conjugated Polymer-Solvent Interactions for Organic Field-Effect Transistors.

Nano letters·2026
Same author

Fundamental Insights into Crystallization and Microphase Separation of Conjugated Block Copolymers.

ACS macro letters·2026
Same author

Cocrystal Engineering of Conjugated Polymer Blends via External Electric Field for Enhanced Charge Transport.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Tuning Solution Aggregates and Thin Film Polymorphs in Conjugated Polymers via External Electric Field for Field-Effect Transistors.

ACS macro letters·2025
Same author

Transfer Printing of Two-Dimensional Molecular Crystals for Low-Voltage, High-Performance, and Degradable Transistors.

Nano letters·2025

Related Experiment Video

Updated: Jul 20, 2025

Monitoring the Effects of Illumination on the Structure of Conjugated Polymer Gels Using Neutron Scattering
06:16

Monitoring the Effects of Illumination on the Structure of Conjugated Polymer Gels Using Neutron Scattering

Published on: December 21, 2017

5.8K

Unfolding the Correlation between Solution Aggregation and Solid-State Crystal Orientation in Donor-Acceptor

Dingke Li1, Qingqing Zhao1, Hao Zheng1

  • 1State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.

Macromolecular Rapid Communications
|August 2, 2023
PubMed
Summary
This summary is machine-generated.

A new solvent additive strategy effectively controls the aggregation and solid-state crystal orientation of donor-acceptor (D-A) copolymers. This method enhances optoelectronic device performance by promoting edge-on crystal alignment in films.

Keywords:
Hansen solubility parametercrystal orientationsdonor-acceptor copolymerssolution aggregationssolvent additives

More Related Videos

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
16:24

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Published on: August 2, 2012

18.7K
Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

7.2K

Related Experiment Videos

Last Updated: Jul 20, 2025

Monitoring the Effects of Illumination on the Structure of Conjugated Polymer Gels Using Neutron Scattering
06:16

Monitoring the Effects of Illumination on the Structure of Conjugated Polymer Gels Using Neutron Scattering

Published on: December 21, 2017

5.8K
Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
16:24

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Published on: August 2, 2012

18.7K
Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

7.2K

Area of Science:

  • Materials Science
  • Organic Electronics
  • Polymer Chemistry

Background:

  • Controlling crystal orientation in donor-acceptor (D-A) copolymers is crucial for optoelectronic device performance.
  • Limited understanding exists regarding solution aggregates and their link to solid-state crystal orientation in D-A copolymers.

Purpose of the Study:

  • To develop a solvent additive strategy for tuning solution aggregates and solid-state crystal structures of D-A copolymers.
  • To investigate the correlation between solution aggregation and film morphology.
  • To enhance the performance of optoelectronic devices through controlled crystal orientation.

Main Methods:

  • Utilized poly{[N,N'-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (P(NDI2OD-T2)) as a model D-A copolymer.
  • Employed 1-decanethiol (10-thiol) as a solvent additive in chloroform solutions.
  • Analyzed changes in polymer aggregation, backbone planarity, and film crystal orientation (edge-on vs. face-on) using drop-casting.

Main Results:

  • 1-decanethiol addition promoted P(NDI2OD-T2) aggregation by improving backbone planarity.
  • This resulted in a shift from mixed edge-on/face-on to dominant edge-on crystal orientation in drop-cast films.
  • The mechanism involves specific interactions between 10-thiol and the polymer side chains.
  • Optical properties of the films were found to correlate with their crystalline structures.

Conclusions:

  • A robust solvent additive strategy using 1-decanethiol effectively regulates solution aggregates and solid-state crystal orientation in D-A copolymers.
  • This approach offers a facile method for tailoring D-A copolymer films for various optoelectronic applications.
  • The findings provide a pathway for optimizing device performance by controlling molecular packing in the solid state.