Process to control the molecular weight and polydispersity of su

Details Process to control the molecular weight and polydispersity of su Process to control the molecular weight and polydispersity of su

1996-01-16

2000-08-01

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

528502C, 528503, 528 86, 528210, 528212, 528214, 528215, 435132, 435156, 435190, 435192, C08F 612, C08J 314

Patent

active

060968591

ABSTRACT:
A process of controlling the molecular weight and dispersity of poly(p-ethylphenol) and poly(m-cresol) synthesized enzymatically by varying the composition of the reaction medium. Polymers with low dispersities and molecular weights from 1000 to 3000 are synthesized in reversed micelles and biphasic systems. In comparison, reactions in bulk solvents resulted in a narrow range of molecular weights (281 to 675 with poly(p-ethylphenol) in a DMF/water system and 1,400 to 25,000 with poly(m-cresol) in an ethanol/water system). Poly(p-ethylphenol) was functionalized at hydroxyl positions with palmitoyl, cinnamoyl, and biotin groups.

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