Our laboratory is a global reference in the Polyolefin Characterization field because it gathers the most complete range of instruments and techniques available for microstructural characterization.
Plastic materials are becoming more complex as new resins are designed to optimize their performance in specific applications.
Some common parameters used to measure performance, such as melt index and density, only show partial information of the resin’s microstructure, and other features exist that explain polymer performance. Separating the polymer according to certain parameters like molar mass, branching, or stereoregularity to study its microstructure, will help uncover the reasons why some plastics behave differently to others.
At Polymer Char, we offer the widest range of analytical services for polyolefin samples and other polymers. Over 25 years of expertise in the polyolefin field, and the most advanced instrumentation for microstructural characterization, have made our laboratory a global reference in polyolefin analysis.
Below are all the techniques that we cover. If you need help to decide which one is the most appropriate for your type of sample, you can get in contact with us by filling out our form.
Size-Exclusion Chromatography (SEC), also known as Gel Permeation Chromatography (GPC), is a liquid chromatography technique that separates molecules according to their size. Polymer Char performs GPC/SEC analyses for polyolefins by using its own high-temperature instruments, GPC-IR and GPC-QC.
The CCD technique separates the molecules based on their crystallizability. Most polyolefin products are produced incorporating comonomers to reduce crystallinity and extend the range of product performance. To define these copolymers, the chemical composition or comonomer incorporation parameter is required in addition to the molar mass distribution.
The combination of GPC and TREF or TGIC techniques is a powerful approach to obtain a complete characterization of complex resins.
The two-dimensional distribution achieved with cross-fractionation techniques reveals the interdependence between molar mass and chemical composition in polyolefins. This information is necessary in some complex samples designed through multiple reactor–catalyst processes.
Preparative fractionation of polymers is a technique that separates the polymer by its molar mass or chemical composition and provides the physical fractions. These fractions can be analyzed afterwards by other techniques such as TREF, CRYSTAF, GPC, NMR, or DSC to study the interdependence between different microstructure parameters. Different separation techniques by chemical composition are available.
The Soluble Fraction test measures the amorphous fraction of polypropylene and ethylene-propylene copolymers, which has a significant influence on the polymer properties.
The data provided by the Soluble Fraction test is equivalent to the Xylene Solubles results obtained with the gravimetric method.
This service provides the intrinsic viscosity of any polymeric material, even of the most challenging ones such as high and ultrahigh molar mass polymers.
The analysis is performed in Polymer Char’s Intrinsic Viscosity Analyzer (IVA), and the results are equivalent to those provided by traditional glass capillaries of the Ubbelohde type.
Minimum Sample Amount
|CRYSTEX QC||>3 g|
|CRYSTEX 42||>1 g|
|Fractionation by TREF||>5 g * resulting amount per fraction desired|
|Fractionation by CRYSTAF||>5 g * resulting amount per fraction desired|
|Fractionation by Molar Mass||>5 g * resulting amount per fraction desired|
A minimum sample amount will be required depending on the analytical service ordered. Please refer to the table above.
Step 1: to request a quotation, please fill in the form that you will find on our website in the “Contact” section of each analysis technique. Or you can also request a quotation by sending us an email to firstname.lastname@example.org. Please state:
Step 2: send us a Purchase Order to email@example.com Other payment methods also accepted are payment by credit card, and payment in advance by bank transfer. The analysis results may not be sent until a valid method of payment is provided.
Step 3: send us your samples to the shipping address in section 4. The minimum amount needed per analysis is stated in section 1, but it is advisable to send more if possible.
We recommend keeping some of the sample in case the shipment gets lost during transport, or the samples need to be traced back and reanalyzed.
Polymer Characterization S.A.
Valencia Technology Park
Gustave Eiffel 8, Paterna
Valencia, E-46980, Spain
Attn.: Analytical Services Department
The samples can be shipped to our laboratories via mail or courier. It is the customer’s responsibility to follow any safety rules concerning transportation.
As the samples have no commercial value, a low value should be declared for customs purposes, and therefore no import taxes should apply. The customer will be responsible for any import tax generated if a high value has been declared in the shipping documents.
The current prices are subject to change without notice.
All standard service fees can be found on polymerchar.com, in the “Fees” section of each technique. Please note that these prices are the same for every customer worldwide and that they are non-negotiable.
As an exception, and based on Polymer Char’s Price Policy, Public Universities and Non-Profit Research Institutes will be granted a 15% discount.
An Analytical Service Report and an Excel file containing the raw data will be sent via email.
Sample results will be kept in Polymer Char’s servers for 5 years.
Unless otherwise requested, the leftover sample will be kept in Polymer Char for 12 months.
Upon request, the samples can be returned to the customer at the customer’s expense.
The results provided are based on our best corporate analytical procedures within the scope of generally accepted methods in the field of expertise, and they are all performed with proper care and a responsible approach.
Polymer Char is willing to repeat the service or do the necessary work to corroborate the results. However, Polymer Char accepts no liability for the information supplied.
Regarding lawsuits, Polymer Char has the responsibility to avoid any conflict of interest that may result in its participation, therefore:
If you are interested in acquiring an instrument, you can send us your own samples for demo analysis. The maximum number of samples for demonstration services is 2. For CFC and Fractionation services we offer 1 sample free of charge.
Polymer Characterization, S.A. is committed to respecting and protecting your privacy and the personal data that you provide to us.
Strict privacy is also applied to the analytical results. If a Privacy Agreement is needed in order to hire our analytical services, please inform us.
Thank you for your interest. If you would like more information about any of our analytical services, please fill out the form below.