Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid. Part A: Investigation of the direct esterification reaction scheme and characterization of products

Stephen G. Boyes; Rodney P. Chaplin; Thomas P. Davis; Jim Viatos; David P. Buxton

doi:10.1016/S0300-9440(00)00131-4

Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid. Part A: Investigation of the direct esterification reaction scheme and characterization of products

Stephen G. Boyes, Rodney P. Chaplin, Thomas P. Davis, Jim Viatos, David P. Buxton

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

1 Citation (Scopus)

Abstract

Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid (PHBA) was carried out at 200-230 °C in the presence of p-toluene sulphonic acid and xylene. Acid value, molecular weight distribution, differential scanning calorimetry and both ¹H and ¹³C NMR analysis were used to monitor the reaction. The optical texture of the final products were examined using a polarizing optical microscope. The products from the reaction were the polyester with approximately 1 PHBA molecule per polymer chain end and unreacted PHBA. The dominant reaction in the system appears to be transesterification, resulting in a decrease of the molecular weight during the reaction. A liquid crystalline phase was not formed as multiple grafts of PHBA were not formed.

Original language	English
Pages (from-to)	137-143
Number of pages	7
Journal	Progress in Organic Coatings
Volume	39
Issue number	2-4
DOIs	https://doi.org/10.1016/S0300-9440(00)00131-4
Publication status	Published - 1 Jan 2000
Externally published	Yes

Access to Document

10.1016/S0300-9440(00)00131-4

Cite this

@article{9a2e38f7801d49969bad286f11c4a0f6,

title = "Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid. Part A: Investigation of the direct esterification reaction scheme and characterization of products",

abstract = "Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid (PHBA) was carried out at 200-230 °C in the presence of p-toluene sulphonic acid and xylene. Acid value, molecular weight distribution, differential scanning calorimetry and both 1H and 13C NMR analysis were used to monitor the reaction. The optical texture of the final products were examined using a polarizing optical microscope. The products from the reaction were the polyester with approximately 1 PHBA molecule per polymer chain end and unreacted PHBA. The dominant reaction in the system appears to be transesterification, resulting in a decrease of the molecular weight during the reaction. A liquid crystalline phase was not formed as multiple grafts of PHBA were not formed.",

author = "Boyes, {Stephen G.} and Chaplin, {Rodney P.} and Davis, {Thomas P.} and Jim Viatos and Buxton, {David P.}",

year = "2000",

month = jan,

day = "1",

doi = "10.1016/S0300-9440(00)00131-4",

language = "English",

volume = "39",

pages = "137--143",

journal = "Progress in Organic Coatings",

issn = "0300-9440",

publisher = "Elsevier BV",

number = "2-4",

}

Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid. Part A : Investigation of the direct esterification reaction scheme and characterization of products. / Boyes, Stephen G.; Chaplin, Rodney P.; Davis, Thomas P. et al.

In: Progress in Organic Coatings, Vol. 39, No. 2-4, 01.01.2000, p. 137-143.

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

TY - JOUR

T1 - Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid. Part A

T2 - Investigation of the direct esterification reaction scheme and characterization of products

AU - Boyes, Stephen G.

AU - Chaplin, Rodney P.

AU - Davis, Thomas P.

AU - Viatos, Jim

AU - Buxton, David P.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid (PHBA) was carried out at 200-230 °C in the presence of p-toluene sulphonic acid and xylene. Acid value, molecular weight distribution, differential scanning calorimetry and both 1H and 13C NMR analysis were used to monitor the reaction. The optical texture of the final products were examined using a polarizing optical microscope. The products from the reaction were the polyester with approximately 1 PHBA molecule per polymer chain end and unreacted PHBA. The dominant reaction in the system appears to be transesterification, resulting in a decrease of the molecular weight during the reaction. A liquid crystalline phase was not formed as multiple grafts of PHBA were not formed.

AB - Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid (PHBA) was carried out at 200-230 °C in the presence of p-toluene sulphonic acid and xylene. Acid value, molecular weight distribution, differential scanning calorimetry and both 1H and 13C NMR analysis were used to monitor the reaction. The optical texture of the final products were examined using a polarizing optical microscope. The products from the reaction were the polyester with approximately 1 PHBA molecule per polymer chain end and unreacted PHBA. The dominant reaction in the system appears to be transesterification, resulting in a decrease of the molecular weight during the reaction. A liquid crystalline phase was not formed as multiple grafts of PHBA were not formed.

UR - http://www.scopus.com/inward/record.url?scp=0034315624&partnerID=8YFLogxK

U2 - 10.1016/S0300-9440(00)00131-4

DO - 10.1016/S0300-9440(00)00131-4

M3 - Article

AN - SCOPUS:0034315624

VL - 39

SP - 137

EP - 143

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

SN - 0300-9440

IS - 2-4

ER -

Direct esterification of a hydroxyl functional polyester resin with p-hydroxybenzoic acid. Part A: Investigation of the direct esterification reaction scheme and characterization of products

Abstract

Access to Document

Other files and links

Cite this