Thermal analysis of polyaryleneoxides

Kopylov, V.V.; Праведников, А.Н.

doi:10.1016/0032-3950(68)90298-0

Cited by 1 publication

(4 citation statements)

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“…FACTOR [2] found that mass loss during the thermogravimetric analysis in nitrogen commenced a t 400°C. Isokinetic measurements of the PPO degradation in vacuo were carried out b y KOPYLOV and PRAVED-NIKOV [ 4 ] . Similar results.…”

Section: Thermal Degradationmentioning

confidence: 99%

“…The volatile products a t 560°C contained 2,6-dimethylphenol, 2,4-dimethylphenol and 2,4,6trimethylphenol as t h e main components. Work of KOPYLOV and PRAVEDNIKOV [7] also deals with these problems. EHLER et al [6] also performed analyses of decomposition products and found CH,, H,, H,O, CO and C 0 2 as t h e main volatiles.…”

Section: Thermal Degradationmentioning

confidence: 99%

“…KOPYLOV and PRAVEDNIKOV [4] also investigated the changes of elementary composition of PPO during the thermooxidative degradation. In the temperature range of 200 to 400°C, the substrate loses hydrogen and gains oxygen, whereas the carbon content decreases very slightly.…”

Section: Thermooxidative Degradation At Temperatures Above 250 O Cmentioning

confidence: 99%

“…KOPYLOV and PFLAVEDNIKOV [7] consider the terminal -OH group as the initiation center of degradation processes, whereas this function is ascribed t o methyl groups by CONLEY [3] and KELLEHER et al [22]. As the rate of thermooxidative ageing a t temperatures below 200 "C is not dependent on molecular mass [33], the initiation according to KOPYWV and PRAVEDNIKOV may not play an important role.…”

Section: Mechanism Of Thermooxidative Degradationmentioning

confidence: 99%

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Thermal, thermooxidative and photooxidative degradation of poly(2,6‐dimethyl‐1,4‐phenylene oxide). Review

Sláma

1980

Acta Polymerica

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Thermal, thermooxidative and photooxidative degradations of polyphenylene oxide are reviewed. Emphasis is given to analytical data of volatile products formed during the thermal degradation. Changes of the solid substrate, such as the methyl group oxidation, crosslinking and chain scission, are of particular importance during the thermooxidative and photooxidative degradation. Thermischer, thermooqdativer und photooxydativer Abbau von Poly(2,6-dimethyl-l,C-phenylemxid). FortschrittsberiehtEs wird eine Ubersicht uber den thermischen, thermooxydativen und photooxydativen Abbau von Polyphenylenoxid gegeben. Darin wird insbesondere auf die Analyse der beim thermischen Abbau entstehenden fluchtigen Produkte eingegangen. Weiterhin werden die Anderungen des festen Substrats beim thermooxydativen und photooxydativen Abbau, wie die Oxydation der Methylgruppen, die Bildung von Vernetzungen und die Kettenspaltung, diskutiert. $60moozucdaumeabnaa deempyzym noau-2,6-d~.~emu-l,P-&enunenozcuda. O630p npmenn oco6oe BHHMaHHe ynenseTcrr a~a~n m y neTymx ~POAYKTOB, 0 6 p a~y m~~x c~ B npoqecce TepMH9eCKOft OKHcnnTenbHoB AecTpyKqnH, xax Hanpmep , OKHcneme MeTHJIOBhIX rpynn , CmiBaHne H pacwenneme qenea . aaeTcJ3 0630p no TepMHWCKOi, TePMOOHHCJIHTeJIbHOt H (POTOOHHCJIHTeJIbHOfi AeCTPYKqHH nOJIH(PeHHJIeHOKCHp3, p3CTpyKqHH. KpOMe TOrO, paCCMaTpHBaloTCR H3MeHeHMH IlOJIHMepa B pe3yJIbTaTe TePMOOKHCJIHTeJIbHOa H (POTO- TepNuueczax mepMoorcucaumeaanafi u

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Section: Thermal Degradationmentioning

confidence: 99%

Section: Thermal Degradationmentioning

confidence: 99%

Section: Thermooxidative Degradation At Temperatures Above 250 O Cmentioning

confidence: 99%

Section: Mechanism Of Thermooxidative Degradationmentioning

confidence: 99%

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