Catalyst effects on the ring-opening polymerization of 1,3-benzoxazine and on the polymer structure

Chao Liu; Dongmei Shen; Rosa María Sebastián; Jordi Marquet; Rainer Schönfeld

doi:10.1016/j.polymer.2013.03.063

Catalyst effects on the ring-opening polymerization of 1,3-benzoxazine and on the polymer structure

Chao Liu, Dongmei Shen, Rosa María Sebastián, Jordi Marquet, Rainer Schönfeld

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Abstract

The effect of various catalysts on the ring-opening polymerization of a simple model of 1,3-benzoxazine has been examined in order to compare their catalytic activities and the catalyst effects on the structure of the final polymer. The catalytic activity has been estimated by the conversion of p-cresol-aniline-based benzoxazine and dynamic Differential Scanning Calorimetry analysis of the curing process. The ratio of phenolic to phenoxy structures (which is representative of the rate of phenoxy-phenolic rearrangement), in each case has been determined by 1H NMR analysis of the corresponding cured mixture. Analysis of the 1H NMR spectra of the phenolic final polymer has been also performed, thus establishing the effects of the used catalyst on the structure of the final phenolic polymer. © 2013 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	2873-2878
Journal	Polymer
Volume	54
Issue number	12
DOIs	https://doi.org/10.1016/j.polymer.2013.03.063
Publication status	Published - 24 May 2013

Keywords

Electrophilic catalysis
Nucleophilic catalysis
Polybenzoxazine

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10.1016/j.polymer.2013.03.063

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title = "Catalyst effects on the ring-opening polymerization of 1,3-benzoxazine and on the polymer structure",

abstract = "The effect of various catalysts on the ring-opening polymerization of a simple model of 1,3-benzoxazine has been examined in order to compare their catalytic activities and the catalyst effects on the structure of the final polymer. The catalytic activity has been estimated by the conversion of p-cresol-aniline-based benzoxazine and dynamic Differential Scanning Calorimetry analysis of the curing process. The ratio of phenolic to phenoxy structures (which is representative of the rate of phenoxy-phenolic rearrangement), in each case has been determined by 1H NMR analysis of the corresponding cured mixture. Analysis of the 1H NMR spectra of the phenolic final polymer has been also performed, thus establishing the effects of the used catalyst on the structure of the final phenolic polymer. {\textcopyright} 2013 Elsevier Ltd. All rights reserved.",

keywords = "Electrophilic catalysis, Nucleophilic catalysis, Polybenzoxazine",

author = "Chao Liu and Dongmei Shen and Sebasti{\'a}n, {Rosa Mar{\'i}a} and Jordi Marquet and Rainer Sch{\"o}nfeld",

year = "2013",

month = may,

day = "24",

doi = "10.1016/j.polymer.2013.03.063",

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T1 - Catalyst effects on the ring-opening polymerization of 1,3-benzoxazine and on the polymer structure

AU - Liu, Chao

AU - Shen, Dongmei

AU - Sebastián, Rosa María

AU - Marquet, Jordi

AU - Schönfeld, Rainer

PY - 2013/5/24

Y1 - 2013/5/24

N2 - The effect of various catalysts on the ring-opening polymerization of a simple model of 1,3-benzoxazine has been examined in order to compare their catalytic activities and the catalyst effects on the structure of the final polymer. The catalytic activity has been estimated by the conversion of p-cresol-aniline-based benzoxazine and dynamic Differential Scanning Calorimetry analysis of the curing process. The ratio of phenolic to phenoxy structures (which is representative of the rate of phenoxy-phenolic rearrangement), in each case has been determined by 1H NMR analysis of the corresponding cured mixture. Analysis of the 1H NMR spectra of the phenolic final polymer has been also performed, thus establishing the effects of the used catalyst on the structure of the final phenolic polymer. © 2013 Elsevier Ltd. All rights reserved.

AB - The effect of various catalysts on the ring-opening polymerization of a simple model of 1,3-benzoxazine has been examined in order to compare their catalytic activities and the catalyst effects on the structure of the final polymer. The catalytic activity has been estimated by the conversion of p-cresol-aniline-based benzoxazine and dynamic Differential Scanning Calorimetry analysis of the curing process. The ratio of phenolic to phenoxy structures (which is representative of the rate of phenoxy-phenolic rearrangement), in each case has been determined by 1H NMR analysis of the corresponding cured mixture. Analysis of the 1H NMR spectra of the phenolic final polymer has been also performed, thus establishing the effects of the used catalyst on the structure of the final phenolic polymer. © 2013 Elsevier Ltd. All rights reserved.

KW - Electrophilic catalysis

KW - Nucleophilic catalysis

KW - Polybenzoxazine

U2 - 10.1016/j.polymer.2013.03.063

DO - 10.1016/j.polymer.2013.03.063

M3 - Article

VL - 54

SP - 2873

EP - 2878

JO - Polymer

JF - Polymer

SN - 0032-3861

IS - 12

ER -

Catalyst effects on the ring-opening polymerization of 1,3-benzoxazine and on the polymer structure

Abstract

Keywords

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