This service is intended to obtain the intrinsic viscosity in polymeric materials, even the most challenging polymers such as high and ultrahigh molar mass polymers. The analysis is performed in the instrument IVA with TCB as solvent and 160°C as standard conditions and results show a good correlation with decaline results. Analysis with other solvents and other conditions are possible too, given the fact the instrument has a wide temperature range up to 200°C.
IVA is a reliable and automated instrument for intrinsic viscosity analysis of polymeric materials, which can sometimes demand high temperatures (up to 200°C) for dissolution. IVA is based on the recently developed QC platform, which integrates in a reduced footprint, a robust dual-capillary relative viscometer combined with a high temperature autosampler of demonstrated reliability in several applications. As an option, the infrared detector IR4 can also be added.
The following are some results of analyses performed by either IVA:
IVA method, 35ºC (dL/g)
Correlation of intrinsic viscosity (IV) values obtained using the IVA method compared to IV determined using a traditional glass capillary setup for a set of PET samples. In both cases a mixture of phenol:o-DCB (2:3, m:v) was used while temperatures were 35ºC and 25ºC respectively.
IVA method TCB @150ºC (dL/g)
Correlation of intrinsic viscosity (IV) values obtained using the IVA method compared to IV determined according to standard method ISO 1628-3:2010 for a set of polypropylene samples. IVA was run in tri-chlorobenzene at 150ºC, using solutions prepared at 1 mg/mL; the ISO method was performed in decalin at 135ºC with solutions at 1-1.5 mg/mL. The linear correlation is excellent as proved by the high R2 value.
To calculate your cost, please use the base amount (‘Standard’ in this case) and then add the corresponding amount as per any additional detectors or services you want to include.
|Intrinsic Viscosity (Price/Sample)||First Sample||Additional Samples|
|Minimum sample amount||>0.5 g|
The fractionation service is available thanks to the Instruments PREP mc2 and PREP C20, capable of fractionating samples by molecular weight or by composition (TREF or CRYSTAF). Please visit the link Preparative Fractionation for more information.
The resulting fractions are later analyzed by the corresponding technique (GPC or TREF/CRYSTAF) to check the good performance of the fractionation process. Finally, the physical fractions are sent back to the customer by courier service as well as the analysis results of the fractions, so the customer can check the separation.
For most of our analyses, you will receive a summary of the results along with an Excel file. However, the type of data and report form depends on the analytical service made. For specifics about the information sent, contact firstname.lastname@example.org.
Please send an email to email@example.com and we will be pleased to help you.
To order any analytical service, please fill in the Analytical Service Request Form. Provide all the information available about the samples to be analyzed. Sent forms will be processed as formal orders for Polymer Char records. All the information provided is considered confidential information.
If a previous quotation is required, please do not hesitate to let us know by sending an email to firstname.lastname@example.org
Samples should be shipped to:
Polymer Characterization S.A.
Valencia Technology Park
Gustave Eiffel 8
Attn.: Analytical Services Department
We highly recommend to use courier service instead of post mail to ensure your samples arrive in good condition.
The standard response time is 3 weeks. This time is approximate and depends on the analysis queue in the laboratory at the time of the order. Polymer Char will inform the customer at the time of the order in case the response time is expected to be longer.
Urgent services (results sent within 10 days from the samples receipt) might be requested with a 50% surcharge. Please consult with Polymer Char the availability of this service and delivery time at the time of the order.
Please refer to our Analytical Services Terms and in the first chapter, you will find the necessary amount for each technique.
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