Structure-property relationships of water-soluble ammonium-ionene copolymers

Mana Tamami; David Salas-De La Cruz; Karen I. Winey; Timothy E. Long

doi:10.1002/macp.201200047

Structure-property relationships of water-soluble ammonium-ionene copolymers

Mana Tamami, David Salas-De La Cruz, Karen I. Winey, Timothy E. Long

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

24 Scopus citations

Abstract

Water-soluble random copolymer ammonium ionenes with M̄ _w in the range of 17.4 to 20.8 kg mol ^-1 and various charge densities are synthesized from 1,12-dibromododecane, N,N,N′,N′-tetramethyl-1,6- hexanediamine, and 1,12-bis(N,N-dimethylamino)dodecane. Anion exchange of the bromine counterion forms ionenes with TFSI, TFO, and BF ₄ anions. The nature of the counteranion and charge density tailor the thermal and rheological properties of 12,6/12-ionenes, respectively. X-ray scattering reveals microphase separation with a correlation length of ≈7 nm for ionenes with 50 to 90% N,N,N′,N′-tetramethyl-1,6-hexanediamine content. Ionene copolymers display polyelectrolyte behavior in methanol based on a predicted scaling relationship between specific viscosity (ν _sp) and concentration.

Original language	English (US)
Pages (from-to)	965-972
Number of pages	8
Journal	Macromolecular Chemistry and Physics
Volume	213
Issue number	9
DOIs	https://doi.org/10.1002/macp.201200047
State	Published - May 14 2012
Externally published	Yes

Keywords

counterion exchange
ionenes
morphology
polyelectrolytes
solution rheology

ASJC Scopus subject areas

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

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10.1002/macp.201200047

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title = "Structure-property relationships of water-soluble ammonium-ionene copolymers",

abstract = "Water-soluble random copolymer ammonium ionenes with {\=M} w in the range of 17.4 to 20.8 kg mol -1 and various charge densities are synthesized from 1,12-dibromododecane, N,N,N′,N′-tetramethyl-1,6- hexanediamine, and 1,12-bis(N,N-dimethylamino)dodecane. Anion exchange of the bromine counterion forms ionenes with TFSI, TFO, and BF 4 anions. The nature of the counteranion and charge density tailor the thermal and rheological properties of 12,6/12-ionenes, respectively. X-ray scattering reveals microphase separation with a correlation length of ≈7 nm for ionenes with 50 to 90% N,N,N′,N′-tetramethyl-1,6-hexanediamine content. Ionene copolymers display polyelectrolyte behavior in methanol based on a predicted scaling relationship between specific viscosity (ν sp) and concentration.",

keywords = "counterion exchange, ionenes, morphology, polyelectrolytes, solution rheology",

author = "Mana Tamami and {Salas-De La Cruz}, David and Winey, {Karen I.} and Long, {Timothy E.}",

year = "2012",

month = may,

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doi = "10.1002/macp.201200047",

language = "English (US)",

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T1 - Structure-property relationships of water-soluble ammonium-ionene copolymers

AU - Tamami, Mana

AU - Salas-De La Cruz, David

AU - Winey, Karen I.

AU - Long, Timothy E.

PY - 2012/5/14

Y1 - 2012/5/14

N2 - Water-soluble random copolymer ammonium ionenes with M̄ w in the range of 17.4 to 20.8 kg mol -1 and various charge densities are synthesized from 1,12-dibromododecane, N,N,N′,N′-tetramethyl-1,6- hexanediamine, and 1,12-bis(N,N-dimethylamino)dodecane. Anion exchange of the bromine counterion forms ionenes with TFSI, TFO, and BF 4 anions. The nature of the counteranion and charge density tailor the thermal and rheological properties of 12,6/12-ionenes, respectively. X-ray scattering reveals microphase separation with a correlation length of ≈7 nm for ionenes with 50 to 90% N,N,N′,N′-tetramethyl-1,6-hexanediamine content. Ionene copolymers display polyelectrolyte behavior in methanol based on a predicted scaling relationship between specific viscosity (ν sp) and concentration.

AB - Water-soluble random copolymer ammonium ionenes with M̄ w in the range of 17.4 to 20.8 kg mol -1 and various charge densities are synthesized from 1,12-dibromododecane, N,N,N′,N′-tetramethyl-1,6- hexanediamine, and 1,12-bis(N,N-dimethylamino)dodecane. Anion exchange of the bromine counterion forms ionenes with TFSI, TFO, and BF 4 anions. The nature of the counteranion and charge density tailor the thermal and rheological properties of 12,6/12-ionenes, respectively. X-ray scattering reveals microphase separation with a correlation length of ≈7 nm for ionenes with 50 to 90% N,N,N′,N′-tetramethyl-1,6-hexanediamine content. Ionene copolymers display polyelectrolyte behavior in methanol based on a predicted scaling relationship between specific viscosity (ν sp) and concentration.

KW - counterion exchange

KW - ionenes

KW - morphology

KW - polyelectrolytes

KW - solution rheology

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Structure-property relationships of water-soluble ammonium-ionene copolymers

Abstract

Keywords

ASJC Scopus subject areas

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