A range of polymers carrying amino‐functions [NHEt, NHBun, NEt2, NPr 2n, N(CH2CH2CH2NH2)2, NMeCH2CH2CH2NH2 or NEtCH2CH2CH2 NH2] has been synthesised via amination of styrene‐vinylbenzyl chloride copolymers, poly(epichlorohydrin) and poly(2‐chloroethyl vinyl ether), and via homopolymerisation and copolymerisation (with styrene) of (n‐butyl)(vinylbenzyl)‐ammonium chloride. Some of the polymers showed promise as curing agents for epoxy resins.

Manchester M60 I ODPerfluoro-2,5-diazahexane 2,5-dioxyl reacts with sulphur dioxide and with sulphur tetrafluoride to give the 1 : 1 cyclic adducts perfluoro(4,7-dimethyl-1,3-dioxa-2-thia-4,7-diazacycloheptane 2,2-dioxide) and perf I uoro (4,7d i methyl -1,3d ioxa -2tet raf I uorot h ia -4,7d i azacyclo hepta ne) , respectively. Per - fluoro( 4,7-dimethyl-l,3-dioxa-2-thia-4,7-diazacycloheptane 2,2-dioxide) which oxidises iodide ion to iodine at room temperature, is stable to hydrolysis by aqueous potassium hydroxide at 120 "C. It is stable to U.V. irradiation, but flow pyrolysis at 350 "C and ca. 1 mmHg pressure gives trifluoronitrosomethane, perf luoro( 2-methyl -1,2-0xazetidine), carbonyl fluoride, perf1 uoro (Nmethylenemethylamine), and sulphur dioxide. It reacts with triphenylphosphine to give perfluoro(3,6-dimethyl-l -oxa-2-thia-3,6diazacyclohexane 2,2-dioxide), perfluoro( 2,5-dimethyl-1 -thia-2,5-diazacyclopentane 1,l -dioxide) and triphenylphosphine oxide. Bis(trifluoromethy1) nitroxide reacts with sulphur dioxide to give the 2 : 1 adduct perfluoro(2,6-dimethyl-3,5-dioxa-4-thia-2,6-diazaheptane 4,4-dioxide), flow pyrolysis of which at 350 "C and ca. 1 mmHg gives only bis(trifluoromethy1) nitroxide ,and sulphur dioxide. Perfluoro(2,4-dimethyl-3-oxa-2,4-diazapentane) reacts with sulphur dioxide giving perfluoro(2,5d i met hyl -3oxa -4-t hia -2,5-diaza hexane 4,4-d ioxide) .

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