Analysis of Polymers (NMR Center)

Analysis of Polymers

Polymers are large molecules (macromolecules) that are composed of smaller repeating structural units called monomers. Due to their excellent properties, low cost and processing advantages, polymers play an important role in almost all aspects of human endeavor. Today, polymers have replaced many traditional materials such as wood, steel, and ceramics, and their annual production continues to grow worldwide. Elucidating the structure and properties of polymeric systems at the molecular level is important for understanding the potential applications of the behavior of polymeric materials. Therefore, analytical methods that can provide such information are key to the advancement of polymer science.

Since its introduction, nuclear magnetic resonance (NMR) spectroscopy has become one of the most widely used analytical tools in the chemical sciences. It is a well-established method for characterizing polymers and has made an important contribution to our understanding of structure-property relationships of polymers. Alfa Chemistry has a one-stop NMR analysis platform and has the ability to provide high-quality NMR analysis services for polymers. Our extensive NMR analysis methods and experienced team of experts will provide you with valuable and unique information about polymers.

Our Services

Our NMR services cover a wide range of polymers, including but not limited to the following targets.

Polyethylene (PE)

Polypropylene (PP)

Polystyrene (PS)

Polyamide (PA)

Poly (vinyl chloride) (PVC)

Poly (ethylene terephthalate) (PET)

Polyisobutene (PIB)

Polyether ether ketone (PEEK)

Polyoxymethylene (POM)

The scope of our evaluation includes but is not limited to monomer type, level and distribution (block or random), chain branching, sequencing, polymer tacticity, molecular weight, molecular weight distribution, and end-group composition.

Our Analysis Methods

NMR spectroscopy has been a powerful tool for characterization of the structures and properties of polymers. The NMR analysis methods used in our laboratory include, but are not limited to the following.

Solid-state NMR Spectroscopy

Solid-state NMR Spectroscopy

Alfa Chemistry can use solid-state NMR spectroscopy for the analysis of polymers. Solid-state NMR allows the study of polymers with different shapes (e.g., powders, particles, plates, etc.) in amorphous and semi-crystalline states without the need for special preparation procedures. By combining various NMR methods working under static or magic angle spinning (MAS) conditions, detailed chemical, morphological and dynamic information can be collected ^[1].

Solution-state NMR Spectroscopy

Alfa Chemistry can use solution-state NMR spectroscopy for the analysis of polymers. Solution NMR is currently the standard method for determining the primary structure of polymers, and it is widely used to analyze fine structures. Through the routine work of solution NMR, the degree of tacticity, branching, regioregurality, sequence distribution and terminal group can be estimated ^[2].

Solution-state NMR Spectroscopy

Our Advantages

We have a leading technology platform and a team of experienced experts.
We provide customers with the most comprehensive services at the most favorable prices to help them save scientific research funds reasonably.
For the content entrusted by the customer, we will strictly keep the secret and sign a confidentiality agreement.
Even for the most complex samples, we strive to provide satisfactory results for our customers.

Alfa Chemistry's services are widely recognized for their precision, efficiency and reliability, and are trusted by researchers and institutions worldwide. Please do not hesitate to start your next project with us.

References

Adams, A. Analysis of solid technical polymers by compact NMR. TrAC Trends in Analytical Chemistry. 2016, 83: 107-119.
Yamanobe, T.; et al. Practical NMR analysis of morphology and structure of polymers. Annual Reports on NMR Spectroscopy. 2010, 70: 203-239.

Our services are for research use only.