Polyamide 6 – High adsorption for Prep Chromatography
Polyamide 6 is widely used for separating botanical extracts (natural products) with phenolic and polyphenolic groups.
The swelling properties enable a high adsorption capacity—much higher than silica gel, alumina, PSDVB, and most other sorbents currently available.
It’s ideally suited for preparative chromatography, but also can is used for analyzing phenolic and polyphenolic substances in natural products.
Polyamide 6 Chromatography Applications:
It’s commonly used to isolate and identify natural substances with phenolic and polyphenolic functional groups such as:
- Flavonoids
- Anthocyanins
- Anthoxanthines
- Anthraquinones
- Flavones and flavonols
- Isoflavones
Through modification of adsorption and partition effects, the retention characteristics of polyamide can be varied substantially. Due to the medium polarity of polyamide, the stationary phase (polyamide swollen with eluent) can be used with a mobile phase that is more polar or less polar. It’s possible to develop in two dimensions with normal and reversed-phase chromatography using the same stationary phase.
Adsorption Depends On:
- The number of the polar groups,
- The degree of the H-bonding activities,
- Size of the analytes, and
- The shape of the analytes.
Thus, structural isomers can be well separated on polyamide.
Typical Polyamide 6 Applications:
- Phenols, aromatic nitro, and amino compounds
- Chalcones, chinones, flavones, and anthraquinones
- Anthocyanins and anthoxanthines
- DNP-amino acids
- Carbonic acids and their Amides
- Sulfonic acids and their amides
| Catalog No. | Description | Price (USD) |
|---|---|---|
| 26520-025 | Polyamide for CC, <70um, 250g |  Buy now $226.92 |
| 26530-025 | Polyamide for CC, 50-160um, 250g | Buy now $227.85 |
| 26540-1 | Polyamide for CC, 100-300um, 1kg | Buy now $520.00 |
For more information see our Polyamide for TLC page.
Polyamide 6: An Overview of Properties, Processing, and Diverse Applications
Abstract: Polyamide 6 (PA6), a versatile synthetic polymer, has gained prominence for its exceptional mechanical, thermal, and chemical properties. This article provides a comprehensive introduction to polyamide 6, detailing its molecular structure, processing methods, and a broad spectrum of applications across industries such as automotive, textiles, electronics, and more.
1. Introduction: Polyamide 6 (PA6), a synthetic polymer belonging to the nylon family, has emerged as a widely used material due to its remarkable combination of mechanical strength, thermal stability, and processability. This article delves into the molecular structure of PA6, explores its processing techniques, and highlights its extensive range of applications across diverse industries.
2. Molecular Structure and Properties: Polyamide 6 is a linear polymer composed of repeating units of caprolactam. Its structure comprises an amide bond, which imparts the material with excellent mechanical strength, rigidity, and resistance to wear and abrasion. Additionally, PA6 exhibits good chemical resistance, making it suitable for various environments.
3. Processing Techniques: Polyamide 6 can be processed using several techniques, including injection molding, extrusion, blow molding, and more. Its high melt viscosity requires appropriate processing conditions to achieve optimal mechanical properties and surface finish.
4. Applications of Polyamide 6:
4.1. Engineering Plastics: PA6 is widely employed in engineering plastics due to its mechanical strength, impact resistance, and dimensional stability. It finds application in manufacturing components for the automotive, aerospace, and consumer electronics industries.
4.2. Textiles and Apparel: Polyamide 6’s excellent moisture-wicking properties, durability, and lightweight nature make it an ideal material for textile applications. It is used in the production of sportswear, hosiery, and industrial fabrics.
4.3. Electrical and Electronics: PA6’s electrical insulating properties, along with its resistance to high temperatures and chemicals, make it suitable for manufacturing connectors, switches, and insulating components in the electronics industry.
4.4. Automotive Components: The automotive industry extensively utilizes PA6 for producing various components such as engine parts, fuel system components, and interior trim due to its mechanical strength, heat resistance, and dimensional stability.
4.5. Consumer Goods: PA6 is found in everyday consumer goods like kitchen utensils, toys, and packaging materials due to its combination of durability, impact resistance, and aesthetics.
4.6. Medical Devices: In the medical field, PA6 is used in the production of surgical instruments, catheters, and other medical devices due to its biocompatibility and sterilization capabilities.
5. Environmental Considerations: As sustainability gains importance, efforts are being made to develop bio-based and recyclable versions of PA6 to reduce its environmental impact.
6. Future Trends: Research continues to focus on improving the mechanical and thermal properties of PA6, as well as developing novel processing techniques to widen its applications.
7. Conclusion: Polyamide 6, with its exceptional properties and versatile processing capabilities, has carved a significant niche across various industries. Its unique combination of mechanical strength, thermal resistance, and chemical stability makes it an indispensable material for an array of applications, from engineering plastics to textiles and electronics. As technology advances, PA6 is likely to remain a key player in materials science and industrial innovation.