BP10961 OH-PDLLA-OH, Medium Molecular Weight Grades (IV 0.18-1.5 dl/g, Mw 15-280 kDa)

OH-PDLLA-OH, Medium Molecular Weight Grades Description

OH-PDLLA-OH (Medium Mw Grade) is a versatile, difunctional biodegradable polymer covering a broad spectrum of molecular weights (15–280 kDa). This range is engineered to provide a practical balance of strength, processability, and high reactivity. As granules or powder, it serves as a premium prepolymer for creating high molecular weight polyurethanes or polyesters, synthesising block copolymers, and as a performance enhancer in composite materials and functional coatings.

OH-PDLLA-OH, Medium Molecular Weight Grades Applications

1.       Advanced Polymer Synthesis
- Chain Extension Prepolymer: React with diisocyanates (for polyurethanes) or diacids/diesters (for polyesters) to efficiently produce high molecular weight, biodegradable elastomers or tough plastics.
- Block Copolymer Macro-initiator: Use the dual hydroxyls to initiate ring-opening polymerisation of other monomers (e.g., ε-caprolactone, glycolide) for creating tailored multi-block copolymers with unique properties.

2.       Performance-Enhanced Composites & Blends
- Reactive Compatibiliser: Incorporate into blends of immiscible biodegradable polymers (e.g., PLA/PBAT, PLA/starch) to improve interfacial adhesion and mechanical properties.
- Fibre/Filter Coupling Agent: Graft onto natural fibres (e.g., hemp, wood flour) or mineral fillers to enhance their bonding with polymer matrices in green composites.

3.       Functional Coatings & Processable Articles
- Cross-linkable Coating Resin: Formulate with cross-linkers (e.g., polyisocyanates, melamines) to produce durable, yet degradable, protective coatings for various substrates.
- Moulded or Extruded Parts: Process into disposable items, horticultural aids, or temporary structural components where a balance of strength and controlled lifespan is needed.

OH-PDLLA-OH, Medium Molecular Weight Grades Packing

The product is supplied in standard vacuum-sealed, moisture-proof packaging with desiccant to ensure stability during transportation and storage. We offer flexible packaging sizes tailored to customer requirements across all stages, from R&D to production. For specific packaging options or to discuss customised packaging solutions, please feel free to contact us.

Additional Information

This medium molecular weight difunctional grade is a cornerstone for custom polymer architecture design. Its ability to serve as a building block for both chain extension and block copolymerisation offers flexibility in material engineering. The broad IV/Mw range within this grade allows fine-tuning of processing behaviour—from low-viscosity solutions to robust melt-processable granules. SAM provides technical data and application support to help you leverage this versatile polymer in developing sustainable materials.