Products Description
PGA(CAS 26124-68-5)is a type of linear polyester polymer with the lowest carbon number, a completely degradable ester structure, and the fastest degradation rate. It is a fatty acid-based polymer with excellent biocompatibility, biodegradability, and mechanical strength.
PGA has a regular molecular structure and tightly packed chain segments, making it a highly crystalline thermoplastic polymer. Its crystallinity is typically around 55%. The melting point (Tm) of PGA is very high, ranging from 220 to 230 °C, which is approximately 50 °C higher than PLA and P3HB [6]. The glass transition temperature of PGA is close to room temperature, ranging from 35 to 40 °C [7]. The crystallization temperature (Tc) of PGA is approximately 150 to 190 °C.
Products Specification
| Product name | PGA/POLYGLYCOLIDE |
| CAS NO | 26124-68-5 |
| ITEM NO | M265 |
| Appearance | White / milky white pellets, no impurities |
| Intrinsic Viscosity | 0.2-2.0 dL/g |
| Tg | 35–40 ℃ |
| Residual Monomer | ＜1% |
| Residual Solvent | ＜0.05% |
| Heavy Metals | ＜10 ppm |
| Density | 1.3 g/cm³ |
| Tin (Catalyst) | ＜200 ppm |
| Sulfated Ash | ＜0.05% |
| Melting point | 220–240 ℃ |
| Package | 100g/1kg/10kg etc. |
| Delivery | 5-8days |
| Storage | - 20℃ |
| MSDS/COA/TDS | Connect us |
Products Application
PGA (CAS 26124-68-5) is mainly used in medical sutures, drug-controlled-release carriers, fracture fixation materials, and tissue engineering scaffolds, etc.
FAQ
Q1:What is the degradation difference among PGA, PDO and PLA?
Re: PGA degrades fastest and absorbs within 2–3 months; PDO degrades in 6–8 months; PLA has the slowest degradation of 12–24 months.
Q2:What are the applications of low and high IV PGA?
Re:Low IV grade is for drug microspheres and carriers; high IV grade is for spinning sutures and injection-molded bone implants requiring good mechanical strength.
Q3:Could moisture-exposed PGA still be used for implant-grade products?
Re: No. It hydrolyzes rapidly upon moisture contact, leading to molecular weight and strength loss. Implant-grade PGA requires moisture-proof frozen storage.
Q4: What are the degradation products of PGA and is it safe?
Re: It degrades into glycolic acid, which can be metabolized and excreted by human body, complying with biocompatibility requirements for medical implants.
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