Description

Poly(1,4-Butylene Adipate-Co-Polycaprolactam) is a high-performance, biodegradable aliphatic polyester copolymer, also known as a poly(ester amide). This material is engineered to offer a unique balance of mechanical strength, flexibility, and controlled degradation, making it a critical component in advanced material formulations. It is primarily sought after by manufacturers in the biomedical, packaging, and specialty plastics industries seeking sustainable material solutions with tailored performance profiles.

Application

• Biomedical Devices: Used in the manufacture of bioresorbable sutures, drug delivery matrices, and tissue engineering scaffolds due to its biocompatibility and predictable degradation rate.
• Eco-friendly Packaging: A key polymer for producing compostable films, bags, and food serviceware that meet stringent environmental standards.
• Controlled-Release Agriculture: Formulated into coatings for fertilizers and pesticides to enable slow, targeted release and reduce environmental impact.
• Specialty Adhesives & Coatings: Imparts flexibility and biodegradability to industrial adhesives, sealants, and protective coatings.
• Performance Plastics: Serves as a modifier to enhance the toughness and processability of other biopolymers like PLA (Polylactic Acid).
• 3D Printing Filaments: Utilized in fused deposition modeling (FDM) to create prototypes and end-use parts requiring specific mechanical and degradative properties.

Basic Information

Product Name	Poly(1,4-Butylene Adipate-Co-Polycaprolactam)
CAS No.	66139-31-9
Molecular Formula	(C10H16O4 · C6H11NO)n
Molecular Weight	Varies by grade and monomer ratio
Synonyms	Poly(butylene adipate-co-ε-caprolactam); Poly(ester amide) from 1,4-butanediol, adipic acid, and ε-caprolactam; PBAC; P(BA-co-CL); Aliphatic polyesteramide; Biodegradable polyesteramide; Poly(1,4-butylene adipate-co-caprolactam)
EINECS	Contact for details

Quality Control

Our Poly(1,4-Butylene Adipate-Co-Polycaprolactam) is produced under a strict quality management system. Each batch is characterized for critical parameters including intrinsic viscosity, monomer ratio, thermal properties (DSC), and residual monomer content to ensure consistent performance and batch-to-batch reproducibility. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. We can support compliance requirements for applications in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); prolonged exposure to high humidity should be avoided to prevent hydrolysis and degradation of polymer properties.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Identification (IR)	Conforms to structure
Intrinsic Viscosity	0.8 - 2.0 dL/g (varies by grade)
Melting Point (DSC)	90 - 140 °C
Moisture Content (KF)	< 0.5 %
Residual Monomer (GC/HPLC)	< 0.1 %
Glass Transition Temp (DSC)	-40 to -10 °C

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