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BP10997 PLGA 75:25, Hydroxyl Terminated, IV: 0.18–0.75 dl/g, Mw: 15–106 kDa

Catalogue Number BP10997
CAS Number 26780-53-0
Composition Poly(D, L-lactide-co-glycolide) 75:25, Hydroxyl Terminated
Form Powder

BP10997 is a medium-to-high molecular weight PLGA 75:25 copolymer with hydroxyl (-OH) termination, offering an intrinsic viscosity (IV) range of 0.18–0.75 dl/g and a molecular weight (Mw) range of 15–106 kDa. This grade combines the extended degradation timeline and enhanced mechanical integrity of higher Mw 75:25 PLGA with the hydrophilicity and chemical reactivity of the hydroxyl end group. Engineered for advanced applications requiring durability, sustained release, and synthetic versatility, it provides a functional platform for biomedical and industrial formulations.

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FAQ

What are the primary benefits of choosing this medium-to-high molecular weight, hydroxyl-terminated PLGA 75:25?

This grade offers a unique combination: the higher Mw and 75:25 ratio provide improved mechanical strength and a longer degradation period (months to over a year), suitable for durable constructs. Simultaneously, the hydroxyl end group imparts hydrophilicity for better biocompatibility and water processing, and serves as a reactive handle for covalent modification, enabling advanced material design.

How does the intrinsic viscosity range (0.18–0.75 dl/g) influence processing options?

This broad IV range accommodates diverse processing techniques. Lower IV sub-grades are excellent for solution-based methods such as spray coating or electrospinning, offering good flow. Higher IV sub-grades provide greater melt strength and solution viscosity, making them suitable for extrusion, injection moulding, or casting solid, free-standing films and scaffolds.

How does the hydroxyl termination interact with the higher molecular weight in terms of degradation?

The hydroxyl group promotes initial hydration at the polymer surface, potentially accelerating the very early stage of degradation. However, the dominant effect of the high molecular weight and 75:25 composition is a significantly extended overall degradation timeline. This combination can be advantageous for applications requiring initial biointegration followed by very slow, controlled resorption.

For what types of advanced applications is this grade particularly designed?

It is designed for applications requiring a balance of longevity, strength, and functionality. Examples include long-term implantable drug delivery systems, load-bearing or semi-structural tissue engineering scaffolds, hydrophilic coatings for medical devices, and as a high-performance macroinitiator for synthesising functional block copolymers with tailored properties.

Can I select a specific sub-grade within this Mw/IV range for my project?

Absolutely. We offer six precise sub-grades within the 15–106 kDa / 0.18–0.75 dl/g range. This allows you to fine-tune the degradation rate, mechanical properties, and processability to match your specific application requirements. Our technical team can assist in selecting the optimal grade.

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