CAS No: 33135-50-1
Molecular Formula: (C6H8O4)n
Density: 1.2-1.3 g/ml
Chemical Names: Poly(L-lactic acid)
Tg: 60-65 C
Appearance: Pale yellow particle
Minimal order quantity: 30 gram
PLLA is a distinct type of polylactide (PLA). PLLA is created through the polymerization of L-lactide. PLLA is a thermoplastic polyester material produced from renewable resources. It remains one of the most environmentally friendly plastics due to its ability to break down quickly and sustainable production processes.
PLLA remains an effective choice in the medical field as it naturally degrades into lactic acid. PLLA microparticles also stimulate inflammation, helping to promote collagen synthesis. Due to these features, PLLA is frequently used as an agent for facial filling and other cosmetic medical procedures.
Many medical implants are made from PLLA, including anchors, rods, pins, plates, and screws.The biodegradable properties of this material allow it to safely degrade inside the body within six months to two years. Other medical applications includes wound management, drug delivery, and orthopedic devices.
The biodegradability of the material allows it to be used for sutures for wounds. After the wound heals, the material naturally degrades. This characteristic also makes it an efficient drug delivery system, allowing for a delayed or continuous delivery.
Frequently Asking Questions
1. How does Poly L-Lactide degrde in body?
Poly-L-lactic acid is slowly degraded into L-lactic acid in the human body environment. There are enzymes in the body that decompose L-lactic acid, which are divided into CO2 and water through the metabolism of body fluids and New City.Therefore, L-lactic acid basically has no side effects on the human body.
2. How long does poly l lactide degrade?
There are many factors affecting the degradation time of polylactic acid, which can be roughly divided into 2 categories.
1. Synthesis method; different synthesis methods will change the molecular characteristics of the polymer, such as molecular weight, molecular weight distribution, end group properties, LA configuration and main chain structure, these characteristics will greatly affect the physical and chemical properties of the polymer, especially It is degradation performance. In theory, the degradation time of PLA with high molecular weight is longer.
2. Material geometry; the geometry and size of the implant will affect its biodegradability. Generally speaking, the larger and thicker the material, the longer the degradation time required.
3. which end group do you privide?
There are three types of end group for option, -OH, -COOH and -COOR.
Meanwhile, we also provide PLLA powder for requirement.