Claims
- 1. An alkoxide-polymerized addition homopolymer or copolymer of an ester of methacrylic acid wherein the polymer comprises mers having the formula ##STR6## wherein R is a (C.sub.2 -C.sub.4) alkenyl group, an allyloxyalkyl group having up to 12 carbon atoms, or an allyloxyalkoxyalkyl group having up to 12 carbon atoms,
- and, optionally, mers derivable from other anionically copolymerizable monomers, and wherein n, the average chain length of the polymer is about 6 to 50 mers; the polmerization being carried out, in the presence of an alcohol and a catalytic amount of an alkoxide, using controlled rates of addition of at least one of ester, the alcohol and the alkoxide.
- 2. The polymer of claim 1 wherein at least about 85% by weight of the molecules of the polymers have chain lengths of about .sqroot.2n to about 2n mers.
- 3. The polymer of claim 2 wherein the average chain length is about 6 to about 25 mers.
- 4. The polymer of claim 2 wherein R is an allyl group.
- 5. The polymer of claim 2 wherein R is an allyloxyethyl group.
- 6. The polymer of claim 2 wherein the polymer also comprises mers having the formula ##STR7## wherein R.sup.1 is a (C.sub.1 -C.sub.24) alkyl group.
- 7. The polymer of claim 6 wherein R.sup.1 is a (C.sub.1 -C.sub.4) alkyl group.
- 8. The polymer of claim 6 represented by the formula: ##STR8## wherein R"0 represents the residue of the chain-regulating alcohol used in the polymerization reaction;
- R'o represents the alcohol portion of an ester of methacrylic acid;
- M represents the interspersed residue of the comonomer or comonomers; and
- n' and n" are integers of one or more, wherein the sum of n' and n" is 3 to 90.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of our pending application U.S. Ser. No. 371,921, filed on June 20, 1973, which is a continuation-in-part of our pending application U.S. Ser. No. 137,057, filed on Apr. 23, 1971 both now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3317483 |
Verdol |
May 1967 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
1,054,018 |
Jan 1967 |
UK |
Non-Patent Literature Citations (3)
Entry |
Shimomura et al., Kogyo Kagaku Zasshi, 1968, 71/7, pp. 1070-1074. |
Trekoval et al., Cemicky Prumysl, vol. 18(6), p. 312, (1968). |
Trekoval et al., Journal of Polymer Science, part C, vol. 4, p. 333 (1963). |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
371921 |
Jun 1973 |
|
Parent |
137057 |
Apr 1971 |
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