3127-14-8

Usage

Uses

Used in Polymer Industry:
Spirobicromane is used as a reactant for the preparation of polycarbonate resins. These resins are valued for their durability, transparency, and heat resistance, making them suitable for a wide range of applications, including automotive parts, electronic devices, and protective eyewear.
Used in Optical Films Industry:
Spirobicromane is also utilized in the production of optical films. These films are essential components in the manufacturing of displays for televisions, computer monitors, and mobile devices. The use of Spirobicromane in this process helps to create films with improved optical properties, such as enhanced clarity and reduced glare.

InChI:InChI=1/C21H24O4/c1-19(2)11-21(24-17-9-13(22)5-7-15(17)19)12-20(3,4)16-8-6-14(23)10-18(16)25-21/h5-10,22-23H,11-12H2,1-4H3

Upstream product

• 504-20-1 phorone 
• 108-46-3 recorcinol 
• 141-79-7 4-methyl-pent-3-en-2-one 
• 67-64-1 acetone 

Relevant academic research and scientific papers

The spirobichroman-based polyimides with different side groups: From structure-property relationships to chain packing and gas transport performance

Spirobichroman-based polymers with high gas permeability and selectivity are promising for their applications as membranes in gas separation. In this study, three spirobichroman-based polyimides (PIs; 6FDA-FH, 6FDA-DH, and 6FDA-MH) were synthesised by the

Diamine monomer containing spiro pyran structure, preparation method and application thereof, polyimide and preparation and application thereof

The invention provides a diamine monomer containing a spiro pyran structure, a preparation method and application thereof, polyimide and preparation and application thereof, and belongs to the technical field of gas membrane separation. The diamine monomer has a micro-pore structure and contains a flexible group (ether bond) and a pyridine structure, a polyimide film prepared from the diamine monomer has a micro-pore structure, a flexible group (ether bond) and a pyridine structure, due to the micro-pore structure, gas micromolecules can easily permeate, the selective permeability of the filmis improved; due to the existence of a flexible group (ether bond), the free volume and flexibility of a polyimide molecular chain can be increased, a solvent is easy to permeate, the problem of poorsolubility of a traditional gas separation membrane caused by a rigid chain is solved, the gas separation membrane has good solubility in a common organic solvent; the introduction of a basic group pyridine structure can increase the permeability of acidic greenhouse gas carbon dioxide and increase the separation efficiency of other gases and carbon dioxide.

The benzoxazine compounds, its manufacturing method and a benzoxazine resin (by machine translation)

[A] good heat resistance, the heat is difficult to be decomposed, high glass transition temperature and a method of manufacturing a novel benzoxazine compounds. [Solution] spirobisindane spiro bisque romance backbone or backbone, such as benzoxazine compo