Charging behavior and stability of the novel amino group containing cellulose ester cellulose-4-[N-methylamino]butyrate hydrochloride

Cíntia Salomão Pinto Zarth; Lidija Fras Zemljič; Duško Čakara; Matej Bračič; Annett Pfeifer; Karin Stana-Kleinschek; Thomas Heinze

doi:10.1002/macp.201200057

Charging behavior and stability of the novel amino group containing cellulose ester cellulose-4-[N-methylamino]butyrate hydrochloride

Cíntia Salomão Pinto Zarth, Lidija Fras Zemljič^*, Duško Čakara, Matej Bračič, Annett Pfeifer, Karin Stana-Kleinschek, Thomas Heinze

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The charging behavior of water-soluble cellulose-4-[N-methylamino]butyrate hydrochloride (CMABH) with different degree of substitution (DS) is investigated by polyelectrolyte titration at different pH values. Samples of high DS (0.92) and low DS (0.31) exhibit a decrease in positively charged groups from pH 2 (3.9 and 1.9 mmol g^-1) to pH 9 (0.81 and 0.65 mmol g^-1) due to the deprotonation of the ammonium groups. The stability of the ester linkage of CMABH is examined as a function of pH value and storage time (up to 28 d). A hydrolysis of the ester moiety is evident after 2 h at pH 8, which is also proved by ATR-FTIR- and Raman spectroscopy.

Original language	English
Pages (from-to)	1669-1676
Number of pages	8
Journal	Macromolecular Chemistry and Physics
Volume	213
Issue number	16
DOIs	https://doi.org/10.1002/macp.201200057
Publication status	Published - 28 Aug 2012
Externally published	Yes

Keywords

amino group-containing cellulose esters
cellulose-4-[ N -methylamino]butyrates
hydrolytic stabilities
polyelectrolyte titrations
potentiometric titrations

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/macp.201200057

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title = "Charging behavior and stability of the novel amino group containing cellulose ester cellulose-4-[N-methylamino]butyrate hydrochloride",

abstract = "The charging behavior of water-soluble cellulose-4-[N-methylamino]butyrate hydrochloride (CMABH) with different degree of substitution (DS) is investigated by polyelectrolyte titration at different pH values. Samples of high DS (0.92) and low DS (0.31) exhibit a decrease in positively charged groups from pH 2 (3.9 and 1.9 mmol g-1) to pH 9 (0.81 and 0.65 mmol g-1) due to the deprotonation of the ammonium groups. The stability of the ester linkage of CMABH is examined as a function of pH value and storage time (up to 28 d). A hydrolysis of the ester moiety is evident after 2 h at pH 8, which is also proved by ATR-FTIR- and Raman spectroscopy.",

keywords = "amino group-containing cellulose esters, cellulose-4-[ N -methylamino]butyrates, hydrolytic stabilities, polyelectrolyte titrations, potentiometric titrations",

author = "Zarth, {C{\'i}ntia Salom{\~a}o Pinto} and Zemlji{\v c}, {Lidija Fras} and Du{\v s}ko {\v C}akara and Matej Bra{\v c}i{\v c} and Annett Pfeifer and Karin Stana-Kleinschek and Thomas Heinze",

year = "2012",

month = aug,

day = "28",

doi = "10.1002/macp.201200057",

language = "English",

volume = "213",

pages = "1669--1676",

journal = "Macromolecular Chemistry and Physics",

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T1 - Charging behavior and stability of the novel amino group containing cellulose ester cellulose-4-[N-methylamino]butyrate hydrochloride

AU - Zarth, Cíntia Salomão Pinto

AU - Zemljič, Lidija Fras

AU - Čakara, Duško

AU - Bračič, Matej

AU - Pfeifer, Annett

AU - Stana-Kleinschek, Karin

AU - Heinze, Thomas

PY - 2012/8/28

Y1 - 2012/8/28

N2 - The charging behavior of water-soluble cellulose-4-[N-methylamino]butyrate hydrochloride (CMABH) with different degree of substitution (DS) is investigated by polyelectrolyte titration at different pH values. Samples of high DS (0.92) and low DS (0.31) exhibit a decrease in positively charged groups from pH 2 (3.9 and 1.9 mmol g-1) to pH 9 (0.81 and 0.65 mmol g-1) due to the deprotonation of the ammonium groups. The stability of the ester linkage of CMABH is examined as a function of pH value and storage time (up to 28 d). A hydrolysis of the ester moiety is evident after 2 h at pH 8, which is also proved by ATR-FTIR- and Raman spectroscopy.

AB - The charging behavior of water-soluble cellulose-4-[N-methylamino]butyrate hydrochloride (CMABH) with different degree of substitution (DS) is investigated by polyelectrolyte titration at different pH values. Samples of high DS (0.92) and low DS (0.31) exhibit a decrease in positively charged groups from pH 2 (3.9 and 1.9 mmol g-1) to pH 9 (0.81 and 0.65 mmol g-1) due to the deprotonation of the ammonium groups. The stability of the ester linkage of CMABH is examined as a function of pH value and storage time (up to 28 d). A hydrolysis of the ester moiety is evident after 2 h at pH 8, which is also proved by ATR-FTIR- and Raman spectroscopy.

KW - amino group-containing cellulose esters

KW - cellulose-4-[ N -methylamino]butyrates

KW - hydrolytic stabilities

KW - polyelectrolyte titrations

KW - potentiometric titrations

UR - http://www.scopus.com/inward/record.url?scp=84865204747&partnerID=8YFLogxK

U2 - 10.1002/macp.201200057

DO - 10.1002/macp.201200057

M3 - Article

AN - SCOPUS:84865204747

SN - 1022-1352

VL - 213

SP - 1669

EP - 1676

JO - Macromolecular Chemistry and Physics

JF - Macromolecular Chemistry and Physics

IS - 16

ER -

Charging behavior and stability of the novel amino group containing cellulose ester cellulose-4-[N-methylamino]butyrate hydrochloride

Abstract

Keywords

ASJC Scopus subject areas

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