Determination of acid and hydroxyl end-groups in end functionalized polystyrenes using 19F NMR

M. Rajan; I.M. Cotiuga; Y. Ma; F. Picchioni; U.S. Agarwal

Determination of acid and hydroxyl end-groups in end functionalized polystyrenes using 19F NMR

M. Rajan, I.M. Cotiuga, Y. Ma, F. Picchioni, U.S. Agarwal

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Abstract

Terminated polystyrene was esterified with 2,2,2-trifluoroethanol using a carbodiimide-mediated room temp. reaction, and hydroxyl-terminated polystyrene was fluoro-derivatized with trifluoroacetic anhydride. The so-formed fluorine-contg. esters were then quant. detd. with 19F NMR, using a,a,a-trifluorotoluene as secondary std. This provides a technique for the reliable detn. of carboxylic acid and hydroxyl groups in small samples of polymers. [on SciFinder (R)]

Original language	English
Article number	046
Pages (from-to)	046-1/7
Journal	e-Polymers
Volume	2003
Publication status	Published - 2003

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title = "Determination of acid and hydroxyl end-groups in end functionalized polystyrenes using 19F NMR",

abstract = "Terminated polystyrene was esterified with 2,2,2-trifluoroethanol using a carbodiimide-mediated room temp. reaction, and hydroxyl-terminated polystyrene was fluoro-derivatized with trifluoroacetic anhydride. The so-formed fluorine-contg. esters were then quant. detd. with 19F NMR, using a,a,a-trifluorotoluene as secondary std. This provides a technique for the reliable detn. of carboxylic acid and hydroxyl groups in small samples of polymers. [on SciFinder (R)]",

author = "M. Rajan and I.M. Cotiuga and Y. Ma and F. Picchioni and U.S. Agarwal",

year = "2003",

language = "English",

volume = "2003",

pages = "046--1/7",

journal = "e-Polymers",

issn = "1618-7229",

publisher = "European Polymer Federation",

}

TY - JOUR

T1 - Determination of acid and hydroxyl end-groups in end functionalized polystyrenes using 19F NMR

AU - Rajan, M.

AU - Cotiuga, I.M.

AU - Ma, Y.

AU - Picchioni, F.

AU - Agarwal, U.S.

PY - 2003

Y1 - 2003

N2 - Terminated polystyrene was esterified with 2,2,2-trifluoroethanol using a carbodiimide-mediated room temp. reaction, and hydroxyl-terminated polystyrene was fluoro-derivatized with trifluoroacetic anhydride. The so-formed fluorine-contg. esters were then quant. detd. with 19F NMR, using a,a,a-trifluorotoluene as secondary std. This provides a technique for the reliable detn. of carboxylic acid and hydroxyl groups in small samples of polymers. [on SciFinder (R)]

AB - Terminated polystyrene was esterified with 2,2,2-trifluoroethanol using a carbodiimide-mediated room temp. reaction, and hydroxyl-terminated polystyrene was fluoro-derivatized with trifluoroacetic anhydride. The so-formed fluorine-contg. esters were then quant. detd. with 19F NMR, using a,a,a-trifluorotoluene as secondary std. This provides a technique for the reliable detn. of carboxylic acid and hydroxyl groups in small samples of polymers. [on SciFinder (R)]

M3 - Article

SN - 1618-7229

VL - 2003

SP - 046-1/7

JO - e-Polymers

JF - e-Polymers

M1 - 046

ER -

Determination of acid and hydroxyl end-groups in end functionalized polystyrenes using 19F NMR

Abstract

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