Description

Cyanoethyl Pullulan CAS NO 77466-56-9 is a chemically modified polysaccharide derivative, synthesized by introducing cyanoethyl groups onto the pullulan backbone. This modification imparts unique properties such as enhanced solubility in organic solvents and improved film-forming characteristics, making it a valuable specialty polymer. It is primarily utilized in advanced material science and high-performance coatings for industries including electronics, optics, and specialty adhesives.

Application

• Electronic Materials: Used as a dielectric layer, insulating film, or binder in the fabrication of capacitors, printed circuit boards, and flexible electronics.
• Optical Coatings: Serves as a transparent, high-refractive-index coating material for lenses, optical filters, and display components.
• Specialty Adhesives: Functions as a key component in formulating high-strength, transparent adhesives for optical and electronic assembly.
• Lithographic Resists: Acts as a photosensitive or electron-beam sensitive polymer in advanced lithography processes for microelectronics.
• Surface Modification: Employed to modify surface properties of materials for improved hydrophobicity, adhesion, or biocompatibility.
• Controlled Release Systems: Investigated for use in pharmaceutical and agrochemical delivery systems due to its tunable solubility and film-forming ability.

Basic Information

Product Name	Cyanoethyl Pullulan
CAS No.	77466-56-9
Molecular Formula	(C9H13NO4)n
Molecular Weight	Variable (Polymer)
Synonyms	Pullulan, 2-cyanoethyl ether; Cyanoethylated Pullulan; β-Cyanoethyl Pullulan; 2-Cyanoethyl Pullulan Ether; Cyanethylpullulan; Poly[(1→6)-α-D-glucopyranosyl-(1→4)-α-D-glucopyranosyl-(1→4)-α-D-glucopyranose], 2-cyanoethyl ether; CAS 77466-56-9
EINECS	Contact for details

Quality Control

Our Cyanoethyl Pullulan is manufactured under a strict quality management system. Each batch is tested to ensure consistent purity, degree of substitution (DS), and molecular weight distribution. Certificates of Analysis (COA) detailing key parameters such as nitrogen content, viscosity, and residual solvents are provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect the material's properties. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to structure
Degree of Substitution (DS)	0.1 - 2.5 (Customizable)
Nitrogen Content	As per DS specification
Viscosity (Solution)	Specified upon grade request
Loss on Drying	≤ 5.0 %
Residual Solvents (GC)	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.