Single-Step Acylation of Polyester Terminals by Enzymatic Ring-Opening Polymerization of 12-Dodecanolide in the Presence of Acyclic Vinyl Esters

1997 ◽  
Vol 70 (7) ◽  
pp. 1691-1695 ◽  
Author(s):  
Hiroshi Uyama ◽  
Hirofumi Kikuchi ◽  
Shiro Kobayashi
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Single Step ◽  
Vinyl Esters

ε-thionocaprolactone: an accessible monomer for preparation of degradable poly(vinyl esters) by radical ring-opening polymerization

2021 ◽  
Author(s):  
Oleksandr Ivanchenko ◽  
Ugo Authesserre ◽  
Guilhem Coste ◽  
Stéphane Mazières ◽  
Mathias Destarac ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Copolymerization ◽  
Vinyl Esters ◽  
Radical Ring

The 7-membered cyclic thionolactone, ε-thionocaprolactone (TCL), undergoes radical copolymerization with vinyl esters to form degradable copolymers. While most radical ring-opening monomers require laborious and low-yielding syntheses, TCL can be prepared...

scholarly journals Structural and Thermal Studies of Fluorescein and Rhodamin6G Grafted Diblock Copolymers

2021 ◽  
Author(s):  
Ramasamy Anbarasan ◽  
B. Meenarathi ◽  
V. Parthasarathy
Keyword(s):  
Ring Opening ◽  
Nmr Spectra ◽  
Diblock Copolymers ◽  
Thermal Studies ◽  
Ring Opening Polymerization ◽  
Single Step ◽  
Step Method ◽  
Polymer Backbone ◽  
Ft Ir ◽  
Thermal Stability Of

Abstract The ring-opening polymerization (ROP) of tetrahydrofuran (THF) and ε-caprolactone (CL) was performed at 160 oC for 2 hr under N2 ambiance by using two different dyes such as fluorescein (Flur) and rhodamine6G (R6G) as novel initiators. The structure of the dye centered diblock copolymers was concluded by analyzing the NMR spectra. The melt transition temperature and thermal stability of the polymers were concluded by DSC and TGA. The FT-IR spectra concluded the structure of the dye grafted homopolymer and diblock copolymers. The increase in molecular weight (Mw) of the dye-centered diblock copolymer was concluded by the GPC measurement. The conjugation of dye with the polymer backbone was carried out by a single-step method.

High Internal Phase Emulsion Ring-Opening Polymerization of Pentadecanolide: Strategy to Obtain Porous Scaffolds in a Single Step

2016 ◽  
Vol 217 (15) ◽  
pp. 1752-1758 ◽  
Author(s):  
Esha Sharma ◽  
Archana Samanta ◽  
Jit Pal ◽  
Supreet S. Bahga ◽  
Bhanu Nandan ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Single Step ◽  
Porous Scaffolds ◽  
High Internal Phase Emulsion ◽  
Internal Phase
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