Ring opening monomers
AssigneeCommonwealth Scientific and Industrial Research Organisation
InventorsEzio Rizzardo, Richard Alexander Evans, Graeme Moad, San Hoa Thang
Life of this patent
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Abstract
Compound of the Formula 1 ##STR1## wherein: R.sup.1 and R.sup.2 are independently selected from the group comprising hydrogen, C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 haloalkyl, phenyl, and substituted phenyl; X is selected from the group comprising sulfur, sulphone, disulfide; Y is selected from oxygen, carbon, N--H, N-alkyl, N-aryl, or sulfur; and Z is any linking functionality. The compounds represent a new class of ring opening monomers.
Claims9
Compounds of the Formula 1 ##STR20## wherein:
- R.sup. and R.sup.2 are independently selected from the group comprising hydrogen, C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 haloalkyl, phenyl, and substituted phenyl;
- X is sulfur;
- Y is oxygen;
- and
- Z is any linking functionality.
Any one of the following compounds:
- 6-methylene-1,4-oxathiepan-7-one;
- 3-methylene-1-oxa-5-thiacycloundecan-2-one;
- 2-methyl-6-methylene-1,4-oxathiepan-7-one;
- 9-methylene-1,4-dioxa-7-thiacyclodecan-10-one;
- 1,9-dioxa-3-methylene-5-thiacycloundodecan-2,8-dione;
- 1,9-dioxa-3-methylene-5-sulfonocyclotridecan-2,8-dione;
- or
- 5-methyl-6-methylene-1,4-oxathiepan-7-one.
A polymer or copolymer characterised in that it comprises repeating units of Formula 2. ##STR21##
Dependencies are inferred from the claim text.