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BP10995 PLGA 75:25, Lauryl Ester Terminated, IV ≥ 0.75 dl/g, Mw ≥ 106 kDa

Catalogue Number BP10995
CAS Number 26780-53-0
Composition Poly(D, L-lactide-co-glycolide) 75:25, Lauryl Ester Terminated
Form Powder

BP10995 is a high molecular weight PLGA 75:25 copolymer featuring standard lauryl ester termination, with an intrinsic viscosity (IV) ≥ 0.75 dl/g and a molecular weight (Mw) ≥ 106 kDa. This specification places it within the high Mw range of our PLGA portfolio, characterised by slower degradation kinetics and enhanced mechanical properties compared to lower Mw grades. The lauryl ester end group contributes additional hydrophobicity, further fine-tuning the degradation profile. This material is specifically designed for applications demanding extended structural integrity, long-term sustained release over many months to years, or processing requiring high melt strength. Stanford Advanced Materials (SAM) ensures precise control over polymerisation to deliver consistent quality for these demanding specifications. Custom sub-grades within this high Mw range or alternative end-group modifications are available upon request.

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FAQ

What are the characteristic features of this high molecular weight PLGA 75:25?

The primary features are its slower degradation rate and higher mechanical strength compared to lower Mw PLGA. This results in a longer functional lifespan, making it suitable for applications requiring material integrity over extended periods, often exceeding several months to years in duration.

How does the high intrinsic viscosity (≥ 0.75 dl/g) influence its processing?

The high IV indicates longer polymer chains, leading to higher solution and melt viscosities. This makes it well-suited for processing techniques that benefit from high melt strength, such as extrusion for thick filaments or blow moulding, and for creating strong, free-standing films or coatings with excellent dimensional stability.

What is the combined effect of the 75:25 ratio and high molecular weight on degradation?

Both factors contribute to a significantly extended degradation timeline. The 75:25 ratio provides a slower-degrading base, and the high molecular weight further increases the time required for chain scission to reduce mechanical properties. The lauryl ester end group adds a hydrophobic barrier, fine-tuning the initial hydrolysis rate.

For what types of applications is this high Mw grade particularly appropriate?

It is particularly appropriate for biomedical devices requiring long-term structural support (e.g., certain orthopaedic fixation devices), implants designed for very slow drug release over many months, and industrial applications where a biodegradable material with high toughness and slow environmental breakdown is required.

Can this material be processed using common methods such as injection moulding?

Yes, it can be processed via injection moulding and extrusion, but optimal results require parameter adjustments for its high viscosity and thermal characteristics. It is excellent for manufacturing high-strength, complex-shaped parts. Consulting our technical team for specific processing guidelines is recommended.

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