Thiol-terminated hydroxyamides

Details Thiol-terminated hydroxyamides Thiol-terminated hydroxyamides

1991-02-28

1993-09-21

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

526211, 528364, 560121, 560123, 560124, 560125, 564154, 564160, 564142, C07C32360, C07C23320, C08F 238, C08G 63685

Patent

active

052471250

ABSTRACT:
Novel thiol-terminated hydroxyamides, and processes for their preparation and use are provided. These hydroxyamide compounds may be prepared by the reaction of a mercapto-functional alkyl ester, such as methylmercaptopropionate, with a molar excess of an alcohol-substituted amine, such as a b-hydroxyalkyl amine. The thiol-terminated hydroxyamides are useful as polymerization chain transfer agents, particularly when it is desirable to form polymers or oligomers containing functional hydroxyamide end groups. By chain terminating such polymers or oligomers with reactive hydroxyamide end groups the polymers or oligomers can be further reacted with acid-containing monomers or polymers to form block or graft copolymers.

REFERENCES:
patent: 3093146 (1963-06-01), Kalopissis et al.
patent: 3148126 (1964-09-01), Martin
patent: 4101606 (1978-07-01), Cenci et al.
patent: 4727111 (1988-02-01), Pettit, Jr. et al.
Haefele et al. "Synthesis and Properties of Mercaptan etc.", Proc. Sci. Sect. Toilet Goods Assoc., No. 32, 52-9 (1959) in Chem. Abst. 54:17233-17234g (1960).
Voss, "Skin Sensitization by Mercaptan of Low Molecular Weight", J. Invest. Derm 31,373-9 (1958) in Chem. Abst. 53:20529e-f and Chem. Abst. Sixth. Coll. And. Formula A-C.sub.12, C.sub.5 H.sub.11 NO.sub.2 S (1964).

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