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BP10998 PLGA 75:25, Hydroxyl Terminated, IV ≥ 0.75 dl/g, Mw ≥ 106 kDa

Catalogue Number BP10998
CAS Number 26780-53-0
Composition Poly(D, L-lactide-co-glycolide) 75:25, Hydroxyl Terminated
Form Powder

BP10998 is a high molecular weight, hydroxyl-terminated PLGA 75:25 copolymer with an intrinsic viscosity (IV) of ≥ 0.75 dl/g and a molecular weight (Mw) of ≥ 106 kDa. It has been engineered for applications requiring prolonged structural integrity and predictable, extended degradation profiles. This grade utilises the inherent durability of high Mw PLGA 75:25. The hydroxyl end-group introduces enhanced hydrophilicity and provides a reactive site for further chemical functionalisation. Stanford Advanced Materials (SAM) employs stringent in-process analytical controls, including gel permeation chromatography (GPC) and differential scanning calorimetry (DSC), to ensure batch-to-batch consistency in molecular weight, composition, and performance, making it a reliable choice for advanced biomedical device development and research.

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FAQ

How does the IV value of ≥ 0.75 dl/g affect the degradation rate of this PLGA copolymer?

The intrinsic viscosity (IV) is a key indicator of polymer chain length and entanglement. An IV ≥ 0.75 dl/g corresponds to a high molecular weight, which results in a slower initial hydration and hydrolysis rate. This leads to a significantly extended and more predictable overall degradation timeline (often exceeding one year), making it ideal for applications requiring long-term structural support or sustained release over extended periods.

What is the role of hydroxyl termination in this polymer's processing and performance?

The hydroxyl (-OH) termination serves dual purposes. First, it increases the polymer's hydrophilicity, improving its wettability and initial biocompatibility in aqueous or biological environments. Secondly, and more critically, it provides a reactive functional handle for covalent chemistry. This allows for polymer chain extension, crosslinking, or grafting with other molecules (e.g., peptides, drugs, or other polymers), enabling the creation of advanced, tailored material systems with enhanced functionality.

What precautions should be taken when handling PLGA powder to minimise contamination?

To preserve the material's properties, handling should be conducted in a low-humidity environment (e.g., a dry box or under a nitrogen atmosphere) to prevent premature hydrolysis. Use clean, dry, and inert tools (stainless steel or glass). Personnel should wear powder-free gloves and use anti-static measures to avoid introducing moisture, particulates, or electrostatic charges. For prolonged storage or critical applications, resealing opened packages under vacuum or inert gas is recommended. Please contact our technical team for specific handling protocols tailored to your process.

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