SG10201803773XA - A method of synthesizing cellulose carbonate - Google Patents

A method of synthesizing cellulose carbonate

Info

Publication number
SG10201803773XA
SG10201803773XA SG10201803773XA SG10201803773XA SG10201803773XA SG 10201803773X A SG10201803773X A SG 10201803773XA SG 10201803773X A SG10201803773X A SG 10201803773XA SG 10201803773X A SG10201803773X A SG 10201803773XA SG 10201803773X A SG10201803773X A SG 10201803773XA
Authority
SG
Singapore
Prior art keywords
cellulose
carbonate
cellulose carbonate
synthesizing
solution
Prior art date
Application number
SG10201803773XA
Inventor
Luo He-Kuan
Mei Xian Lee Agnes
Huang Sheng-Li
Original Assignee
Agency Science Tech & Res
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency Science Tech & Res filed Critical Agency Science Tech & Res
Publication of SG10201803773XA publication Critical patent/SG10201803773XA/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B5/00—Preparation of cellulose esters of inorganic acids, e.g. phosphates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/16—Esters of inorganic acids

Abstract

A METHOD OF SYNTHESIZING CELLULOSE CARBONATE According to the present disclosure, a method of synthesizing cellulose carbonate is provided. The method includes mixing a solution comprising dimethyl sulfoxide and cellulose with an organic base in the presence of carbon dioxide to form a cellulose solution comprising cellulose carbonate anions, wherein the organic base is represented by a formula of: R4 R5 wherein each of Ri, R2 and R3 is C1-C20 alkyl; and wherein each of R4 and R5 is hydrogen or C1-C20 alkyl. The method also includes contacting the cellulose solution with one or more organochlorides in the presence of carbon dioxide to form the cellulose carbonate, and adding an alcohol or water to precipitate the cellulose carbonate. No Figure
SG10201803773XA 2017-05-05 2018-05-04 A method of synthesizing cellulose carbonate SG10201803773XA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG10201703736P 2017-05-05

Publications (1)

Publication Number Publication Date
SG10201803773XA true SG10201803773XA (en) 2018-12-28

Family

ID=62222384

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201803773XA SG10201803773XA (en) 2017-05-05 2018-05-04 A method of synthesizing cellulose carbonate

Country Status (2)

Country Link
EP (1) EP3398970B1 (en)
SG (1) SG10201803773XA (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115386011B (en) * 2022-08-23 2023-11-07 中国科学院宁波材料技术与工程研究所 Preparation method of cyanoethyl cellulose

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1289548A (en) * 1969-12-18 1972-09-20
DE4130807A1 (en) * 1991-09-17 1993-03-18 Wolff Walsrode Ag METHOD FOR PRODUCING POLYSACCHARIDE CARBONATES
FI125827B (en) * 2010-06-23 2016-02-29 Stora Enso Oyj Process for dissolving lignocellulosic material

Also Published As

Publication number Publication date
EP3398970A1 (en) 2018-11-07
EP3398970B1 (en) 2020-02-12

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