Preparation of a polyhedral oligomeric silsesquioxanes hybrid monolith via a single‐step ring‐opening polymerization for pressurized capillary electrochromatography

2018 ◽  
Author(s):  
Jun Wang ◽  
Haoran Sun ◽  
Haixia Lyu ◽  
Zenghong Xie
Keyword(s):  
Capillary Electrochromatography ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Single Step ◽  
Polyhedral Oligomeric Silsesquioxanes ◽  
Pressurized Capillary Electrochromatography

scholarly journals Preparation and Characterization of Novel Electrospinnable PBT/POSS Hybrid Systems Starting from c-PBT

2015 ◽  
Vol 2015 ◽  
pp. 1-8
Author(s):  
Lorenza Gardella ◽  
Alberto Fina ◽  
Orietta Monticelli
Keyword(s):  
Hybrid Systems ◽  
Hybrid System ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Polymerization Reaction ◽  
Polyhedral Oligomeric Silsesquioxanes ◽  
Polymer Backbone ◽  
Reactive Groups

Novel hybrid systems based on poly(butyleneterephthalate) (PBT) and polyhedral oligomeric silsesquioxanes (POSS) have been prepared by applying the ring-opening polymerization of cyclic poly(butyleneterephthalate) oligomers. Two types of POSS have been used: one characterized by hydroxyl functionalities (named POSS-OH) and another without specific reactive groups (named oib-POSS). It was demonstrated that POSS-OH acts as an initiator for the polymerization reaction, leading to the direct insertion of the silsesquioxane into the polymer backbone. Among the possible applications of the PBT/POSS hybrid system, the possibility to obtain nanofibers has been assessed in this work.

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.

Single-step preparation and characterization of polymeric monolith for pressurized capillary electrochromatography of typical homologs

2007 ◽  
Vol 30 (17) ◽  
pp. 2993-2999 ◽  
Author(s):  
Haixia Lü ◽  
Jiabin Wang ◽  
Xiaochun Wang ◽  
Xiaoping Wu ◽  
Xucong Lin ◽  
...  
Keyword(s):  
Capillary Electrochromatography ◽  
Single Step ◽  
Pressurized Capillary Electrochromatography

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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