✦ LIBER ✦

Thermal degradation of poly(o-acetylstyrene)

✍ Scribed by N.A. Weir; K. Whiting; J. Arct; G. McCulloch

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 438 KB
Volume: 24
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(88)90123-1

No coin nor oath required. For personal study only.

✦ Synopsis

The thermal degradation of poly(o-acetylstyrene) (POAS) was studied at 390°C under high vacuum. The principal reactions are removal and decomposition of acetyl groups, depolymerization, random chain scission and oligomer formation. The degradation mechanism resembles that of polystyrene (PS) but the presence of methyl radicals increases the number of transfer reactions with the polymer. The resulting chain radicals undergo fl-scission (chain scission), one of the two species formed yielding oligomeric products and the other yielding monomer. The ratio of oligomer to monomer concentration is greater than that observed for PS: this effect has been attributed to shorter zip lengths, and to the occurrence of additional transfer reactions in POAS.

📜 SIMILAR VOLUMES

Thermal degradation of poly(sulfobetaine

Thermal degradation of poly(sulfobetaines)

✍ J. Cardoso; L. Rubio; M. Albores-Velasco 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 155 KB 👁 2 views

Due to their interesting properties, zwitterionic polymers have been extensively studied; however, only a few reports discuss their thermal degradation. The objective of this work was to study the pattern of thermal degradation of three poly-(sulfobetaines) with different lateral chain lengths and t

Thermal degradation kinetics of poly(O,O

Thermal degradation kinetics of poly(O,O-diethyl-O-allylthiophosphate-co-acrylonitrile) in nitrogen

✍ Yuanlin Ren; Bowen Cheng; Aibing Jiang; Youcai Lu; Ling Xu 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 164 KB

Thermal degradation of poly(phenylene ox

Thermal degradation of poly(phenylene oxides)

✍ J. M. Cox; B. A. Wright; W. W. Wright 📂 Article 📅 1965 🏛 John Wiley and Sons 🌐 English ⚖ 462 KB 👁 2 views

The thermal degradation of poly(acenapht

The thermal degradation of poly(acenaphthylene)

✍ T. Hammond; R.S. Lehrle 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 201 KB

The thermal stability of poly(acenaphthylene) has been studied by pyrolysis gas-liquid chromatography and pyrolysis mass spectrometry. The principal degradation product is acenaphthylene monomer, with smaller amounts of a similar compound, possibly the saturated acenaphthene. Small yields of a dimer

Thermal degradation of poly(butylene ter

Thermal degradation of poly(butylene terephthalate)

✍ V. Passalacqua; F. Pilati; V. Zamboni; B. Fortunato; P. Manaresi 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 367 KB

Thermal Degradation of Environmentally D

Thermal Degradation of Environmentally Degradable Poly(hydroxyalkanoic acid)s

✍ Hideki Abe 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 452 KB

## Abstract **Summary:** Aliphatic polyesters have attracted industrial attention as environmentally degradable thermoplastics to be used for a wide range of applications. Besides intensive studies on the biodegradability of aliphatic polyesters, understanding of the thermal stability has importanc