Cellulose Solvents
Contents
Basics
- Cellulose is rather difficult to dissolve in most solvents
- Dissilving cellulose is rather useful for the production of textiles (Like Rayon). as well as the production of bioplastics (Cellophane)
- It is also useful for obtaining a high purity cellulose for various other chemistry and biology uses
- Thus developing special solvents is a useful accomplishment
- This Page Explores What Solvents Can be Used
Solvents
- Exerpt From The Cellulose Wikipedia Page:
Cellulose is soluble in Schweizer's reagent, cupriethylenediamine (CED), cadmiumethylenediamine (Cadoxen), N-methylmorpholine N-oxide, and lithium chloride / dimethylacetamide.[19] This is used in the production of regenerated celluloses (such as viscose and cellophane) from dissolving pulp. Cellulose is also soluble in many kinds of ionic liquids.[20]
- Also Read the Links Posted in The "See Also" and "Useful Links" Sections of this Page For Further Info
Schweizer's Reagent
- See Schweizer's Reagent
- Possibly The Simplest To Make
- Also safe (assuming you don't drink it or dump it in a river etc)
Viscose Method
- Two Part Process (Exluding Pulp Processing (ie just the dissolution is two steps) ):
- Pulp is treated with an alkali solution
- Alkali-Pulp is treated with Carbon Disulfide
- The carbon disulfide used is a rather nasty chemical
- See Viscose Method for more info
Dimethylacetamide
- Complex (and proboably quite expensive)
- Quite Toxic
- Not of too much intrest
N-methylmorpholine N-oxide
- VERY complex and expensive
- Possibly the most effective method commercially used (ie most pure product)
- Not too much information outside of scholarly papers (more delving into these is nessisary)
- See N-methylmorpholine N-oxide for more info
Misc
Internal Links
- Open Source Cellulose Based Semi-Synthetic Textile Producer
- Poli Log
- Schweizer's Reagent
- Viscose Method
- N-methylmorpholine N-oxide
External Links
- The Wikipedia Page on Cellulose
- The Subsection of the "Cellulose" Wikipedia Page on "Structure and Properties" (See the bit on solubility)
- This from 2010 on Cellulose Solvents
- A Video by the Youtube Channel "Merit Store" Titled "Rayon, Modal, Tencel, Lyocell, Viscose, Cupro (or Cupra or Cuprammonium) Production, Sustainability"
