SYNTHESIS OF TELECHELIC MONODISPERSED DIOLS. PART 3. TELOMERIZATION OF NONCONJUGATED DIENES WITH COMMERCIALLY AVAILABLE OR SYNTHESIZED MERCAPTO-ALCOHOLS

Abstract

The synthesis of telechelic monodispersed diols produced from the radical telomerization of commercially available nonconjugated dienes (1,5-hexadiene and 1,9-decadiene) with an excess of commercial (2-mercapto ethanol) or synthesized thio-alcohol, initiated by peroxydes is presented. In each case, the diols were obtained selectively and in excellent yields and were characterized by both ¹H and ¹³C-NMR. The thermostability of these latter diols is much better than that of polydispersed commercially available diols such as polyethylene glycol or poly(THF).

Key Words:

• Telechelic diol
• monodispersity
• radical telomerization
• mercapto-alcohol
• thermostability