Description

Poly(L-Lactide) CAS NO 33135-50-1 is a high-purity, biodegradable polymer derived from L-lactic acid. This material is essential for applications requiring excellent biocompatibility, controlled degradation, and high mechanical strength. It is a critical raw material for manufacturers in the medical device, pharmaceutical, and sustainable packaging industries seeking reliable, high-performance biopolymers.

Application

Poly(L-Lactide) is a versatile biopolymer with key applications across advanced industries:

• Medical Implants & Devices: Used in bioresorbable sutures, orthopedic fixation devices (screws, pins, plates), and tissue engineering scaffolds due to its biocompatibility and predictable degradation profile.
• Controlled Drug Delivery: Serves as a matrix for microspheres, nanoparticles, and implants designed for sustained release of pharmaceutical actives.
• Sustainable Packaging: A primary component in compostable films, rigid containers, and coatings, offering an eco-friendly alternative to conventional plastics.
• 3D Printing (Additive Manufacturing): Utilized as a filament (PLLA) in Fused Deposition Modeling (FDM) for creating prototypes, medical models, and custom implants.
• Specialty Fibers & Nonwovens: Spun into fibers for agricultural textiles, hygiene products, and filtration media that require biodegradability.

Basic Information

Product Name	Poly(L-Lactide)
CAS No.	33135-50-1
Molecular Formula	(C₃H₄O₂)ₙ
Molecular Weight	Varies by grade (Contact for details)
Synonyms	PLLA; Poly(L-lactic acid); Poly(L-lactide) resin; Poly[(R)-3-hydroxypropionate]; (S)-Poly(lactic acid); PLA; Polylactide; L-Polylactide; Poly(α-hydroxypropionic acid), L-form
EINECS	Contact for details

Quality Control

Our Poly(L-Lactide) is manufactured under a rigorous quality management system. Each batch is characterized for critical parameters including inherent viscosity, residual monomer content, molecular weight distribution, and thermal properties to ensure consistent performance for demanding applications. Certificates of Analysis (COA) documenting full specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). For long-term stability, store in a cool, dry place at 15-25°C. For optimal performance, store under inert atmosphere or in a desiccator after opening to prevent moisture uptake and potential molecular weight degradation.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Identification (IR)	Conforms to structure
Inherent Viscosity (dl/g)	1.0 - 6.0 (Grade dependent)
Residual Monomer (L-Lactide)	< 0.5% (by HPLC)
Glass Transition Temperature (Tg)	55 - 65 °C
Melting Temperature (Tm)	170 - 190 °C
Residual Solvents	Meets ICH guidelines
Heavy Metals	< 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.