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 Experiment Videos

Interaction-controlled HPLC for block copolymer analysis and separation.

Soojin Park1, Insun Park, Taihyun Chang

  • 1Department of Chemistry and Center for Integrated Molecular Systems, POSTECH, Pohang, 790-784, Korea.

Journal of the American Chemical Society
|July 22, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Low-Dose Neostigmine at 0.7 Train-of-Four Ratio Safely Accelerates Neuromuscular Recovery: A Prospective Observational Study.

Drug design, development and therapy·2026
Same author

Fluorinated poly(aryl ether)s containing difluoromethylene and tetrafluoroethylene moieties.

RSC advances·2025
Same author

Comparative effects of sevoflurane and desflurane on postoperative renal function in patients with type 2 Diabetes mellitus.

Renal failure·2025
Same author

Liberal Fluid Therapy Increases Postoperative Acute Kidney Injury in Patients Undergoing Laparoscopic Sleeve Gastrectomy with Dexmedetomidine.

Obesity surgery·2025
Same author

Effect of intraoperative administration of magnesium on residual neuromuscular blockade: a retrospective cohort study.

Magnesium research·2025
Same author

Synthetic homoisoflavane derivatives suppress the growth of colorectal cancer cells by disturbing microtubule dynamics.

Biochemical pharmacology·2025

A new interaction-controlled High-Performance Liquid Chromatography (HPLC) method effectively analyzes and purifies block copolymers, removing unwanted homopolymers missed by traditional Size Exclusion Chromatography (SEC). This technique ensures higher purity and narrower composition for advanced polymer materials.

Area of Science:

  • Polymer Chemistry
  • Analytical Chemistry
  • Materials Science

Background:

  • Block copolymers are crucial in advanced materials, but their analysis and purification can be challenging.
  • Traditional Size Exclusion Chromatography (SEC) may not accurately detect homopolymer impurities in block copolymer systems.
  • Homopolymer contamination can significantly affect the performance and properties of block copolymers.

Purpose of the Study:

  • To develop a novel analytical technique for identifying and quantifying homopolymer precursors in block copolymer systems.
  • To establish a purification method for obtaining homopolymer-free and compositionally narrow block copolymers.
  • To demonstrate the limitations of Size Exclusion Chromatography (SEC) in assessing the purity of block copolymers.

Main Methods:

Related Experiment Videos

  • Development and application of an interaction-controlled High-Performance Liquid Chromatography (HPLC) technique.
  • Utilizing specific interactions to separate block copolymers from their constituent homopolymers.
  • Comparative analysis of block copolymer samples using both SEC and the developed HPLC method.

Main Results:

  • The interaction-controlled HPLC method successfully identified homopolymer precursors that were not detected by SEC.
  • Purification using HPLC yielded block copolymers that were free of homopolymers.
  • The HPLC-purified block copolymers exhibited narrower compositional distributions compared to as-synthesized samples.
  • Demonstrated that a single peak in SEC does not guarantee homopolymer absence in block copolymer analysis.

Conclusions:

  • Interaction-controlled HPLC is a powerful and rigorous strategy for the accurate analysis and purification of block copolymers.
  • This technique addresses the limitations of SEC in characterizing chemical heterogeneity in block copolymer systems.
  • The developed method is essential for obtaining high-purity block copolymers with controlled compositions for advanced applications.