Free-radical crosslinking copolymerization of styrene/unsaturated polyester resins: 2. Electron spin resonance study

C. P. Hsu; L. James Lee

doi:10.1016/0032-3861(93)90157-6

Free-radical crosslinking copolymerization of styrene/unsaturated polyester resins: 2. Electron spin resonance study

C. P. Hsu, L. James Lee^*

^*Corresponding author for this work

Institute of Biopharmaceutical Sciences

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

30 Scopus citations

Abstract

Electron spin resonance (e.s.r.) spectroscopy provided useful information regarding the nature of propagating radicals and the radical concentration during the free-radical copolymerization of styrene (ST)/unsaturated polyester (UPE) resins. The hyperfine structure of the spectrum showed that there were three types of radicals in the ST/UPE copolymerization at low temperatures. Changes of these radical species were determined by the e.s.r. spectrum simulation method. The behaviour of trapped radicals formed during polymerization was also examined by temperature scanning.

Original language	English
Pages (from-to)	4506-4515
Number of pages	10
Journal	polymer
Volume	34
Issue number	21
DOIs	https://doi.org/10.1016/0032-3861(93)90157-6
State	Published - Nov 1993

Keywords

copolymerization
electron spin resonance
free radicals

Access to Document

10.1016/0032-3861(93)90157-6

Cite this

@article{789157ef9cc74c43901e1eca760a3d5c,

title = "Free-radical crosslinking copolymerization of styrene/unsaturated polyester resins: 2. Electron spin resonance study",

abstract = "Electron spin resonance (e.s.r.) spectroscopy provided useful information regarding the nature of propagating radicals and the radical concentration during the free-radical copolymerization of styrene (ST)/unsaturated polyester (UPE) resins. The hyperfine structure of the spectrum showed that there were three types of radicals in the ST/UPE copolymerization at low temperatures. Changes of these radical species were determined by the e.s.r. spectrum simulation method. The behaviour of trapped radicals formed during polymerization was also examined by temperature scanning.",

keywords = "copolymerization, electron spin resonance, free radicals",

author = "Hsu, {C. P.} and Lee, {L. James}",

note = "Funding Information: This research was partially supported by grants from the National Science Foundation (Grant No. CBT-8820674) and the Engineering Research Center at The Ohio State University. The authors thank Ashland Chemical Company for material donation.",

year = "1993",

month = nov,

doi = "10.1016/0032-3861(93)90157-6",

language = "English",

volume = "34",

pages = "4506--4515",

journal = "polymer",

issn = "0032-3861",

publisher = "Elsevier B.V.",

number = "21",

}

TY - JOUR

T1 - Free-radical crosslinking copolymerization of styrene/unsaturated polyester resins

T2 - 2. Electron spin resonance study

AU - Hsu, C. P.

AU - Lee, L. James

N1 - Funding Information: This research was partially supported by grants from the National Science Foundation (Grant No. CBT-8820674) and the Engineering Research Center at The Ohio State University. The authors thank Ashland Chemical Company for material donation.

PY - 1993/11

Y1 - 1993/11

N2 - Electron spin resonance (e.s.r.) spectroscopy provided useful information regarding the nature of propagating radicals and the radical concentration during the free-radical copolymerization of styrene (ST)/unsaturated polyester (UPE) resins. The hyperfine structure of the spectrum showed that there were three types of radicals in the ST/UPE copolymerization at low temperatures. Changes of these radical species were determined by the e.s.r. spectrum simulation method. The behaviour of trapped radicals formed during polymerization was also examined by temperature scanning.

AB - Electron spin resonance (e.s.r.) spectroscopy provided useful information regarding the nature of propagating radicals and the radical concentration during the free-radical copolymerization of styrene (ST)/unsaturated polyester (UPE) resins. The hyperfine structure of the spectrum showed that there were three types of radicals in the ST/UPE copolymerization at low temperatures. Changes of these radical species were determined by the e.s.r. spectrum simulation method. The behaviour of trapped radicals formed during polymerization was also examined by temperature scanning.

KW - copolymerization

KW - electron spin resonance

KW - free radicals

UR - http://www.scopus.com/inward/record.url?scp=0027701219&partnerID=8YFLogxK

U2 - 10.1016/0032-3861(93)90157-6

DO - 10.1016/0032-3861(93)90157-6

M3 - Article

AN - SCOPUS:0027701219

SN - 0032-3861

VL - 34

SP - 4506

EP - 4515

JO - polymer

JF - polymer

IS - 21

ER -

Free-radical crosslinking copolymerization of styrene/unsaturated polyester resins: 2. Electron spin resonance study

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this