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

scholarly journals Emulsion-templated synthetic polypeptide scaffolds prepared by ring-opening polymerization of N-carboxyanhydrides

2020 ◽  
Vol 11 (26) ◽  
pp. 4260-4270 ◽  
Author(s):  
Ozgun Can Onder ◽  
Petra Utroša ◽  
Simon Caserman ◽  
Marjetka Podobnik ◽  
Magda Tušek Žnidarič ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
High Internal Phase Emulsion ◽  
Internal Phase ◽  
Synthetic Polypeptides ◽  
Synthetic Polypeptide

Ring-opening polymerization of N-carboxyanhydrides was performed in oil-in-oil high internal phase emulsion to obtain well-defined macroporous synthetic polypeptides.

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.

scholarly journals A Natural Rubber Waste Derived Surfactant for High Internal Phase Emulsion Templating of Poly(dicyclopentadiene)

2021 ◽  
Author(s):  
Viktor Schallert ◽  
Christian Slugovc
Keyword(s):  
Natural Rubber ◽  
Ring Opening ◽  
Ester Group ◽  
Ionic Surfactants ◽  
Ionic Surfactant ◽  
High Internal Phase Emulsion ◽  
Cross Metathesis ◽  
Rubber Waste ◽  
Internal Phase ◽  
Emulsion Templating

The use of a surfactant derived from the degradation of natural rubber gloves via cross-metathesis with methyl acrylate and subsequent saponification of the ester group for the stabilization of water in dicyclopentadiene high internal phase emulsions is described. The versatility of the resulting high internal phase emulsion was demonstrated by polymerizing the continuous dicyclopentadiene phase via Ring-opening Metathesis Polymerization yielding macroporous poly(dicyclopentadiene) foams with a porosity of 82 %. The use of the ionic surfactant allows for the preparation of foams, which are resistant to absorb water. This property was hitherto not accessible with protocols involving the use of non-ionic surfactants commonly employed in emulsion templating of polymers.<br>

scholarly journals A Natural Rubber Waste Derived Surfactant for High Internal Phase Emulsion Templating of Poly(dicyclopentadiene)

2021 ◽  
Author(s):  
Viktor Schallert ◽  
Christian Slugovc
Keyword(s):  
Natural Rubber ◽  
Ring Opening ◽  
Ester Group ◽  
Ionic Surfactants ◽  
Ionic Surfactant ◽  
High Internal Phase Emulsion ◽  
Cross Metathesis ◽  
Rubber Waste ◽  
Internal Phase ◽  
Emulsion Templating

The use of a surfactant derived from the degradation of natural rubber gloves via cross-metathesis with methyl acrylate and subsequent saponification of the ester group for the stabilization of water in dicyclopentadiene high internal phase emulsions is described. The versatility of the resulting high internal phase emulsion was demonstrated by polymerizing the continuous dicyclopentadiene phase via Ring-opening Metathesis Polymerization yielding macroporous poly(dicyclopentadiene) foams with a porosity of 82 %. The use of the ionic surfactant allows for the preparation of foams, which are resistant to absorb water. This property was hitherto not accessible with protocols involving the use of non-ionic surfactants commonly employed in emulsion templating of polymers.<br>

Sign in / Sign up

Export Citation Format

Share Document