Well-Defined Multi-Amino-Functional and Stimuli-Responsive Poly(propylene oxide) by Crown Ether Assisted Anionic Ring-Opening Polymerization

2017 ◽  
Vol 50 (22) ◽  
pp. 8885-8893 ◽  
Author(s):  
Jan Blankenburg ◽  
Manfred Wagner ◽  
Holger Frey
Keyword(s):  
Crown Ether ◽  
Propylene Oxide ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Stimuli Responsive ◽  
Anionic Ring ◽  
Poly Propylene

Activated anionic ring-opening polymerization for the synthesis of reversibly cross-linkable poly(propylene oxide) based on furan/maleimide chemistry

2016 ◽  
Vol 7 (8) ◽  
pp. 1612-1622 ◽  
Author(s):  
Kévin Roos ◽  
Elena Dolci ◽  
Stéphane Carlotti ◽  
Sylvain Caillol
Keyword(s):  
Propylene Oxide ◽  
Ring Opening ◽  
Glycidyl Ether ◽  
Ring Opening Polymerization ◽  
Anionic Ring ◽  
Poly Propylene ◽  
Anionic Copolymerization

Controlled anionic copolymerization of propylene oxide and furfuryl glycidyl ether was developed for the synthesis of reversibly cross-linkable polyethers.

Theoretical and experimental studies of the initiator influence on the anionic ring opening polymerization of propylene oxide

2008 ◽  
Vol 879 (1-3) ◽  
pp. 40-52 ◽  
Author(s):  
Gabriel Cendejas ◽  
César Andrés Flores-Sandoval ◽  
Nelson Huitrón ◽  
Rafael Herrera ◽  
Luis S. Zamudio-Rivera ◽  
...  
Keyword(s):  
Propylene Oxide ◽  
Ring Opening ◽  
Experimental Studies ◽  
Ring Opening Polymerization ◽  
Anionic Ring

Synthesis and anionic ring-opening polymerization of crown-ether-like macrocyclic dilactones: An alternative route to PEG-containing polyesters and related networks

2013 ◽  
Vol 49 (12) ◽  
pp. 4087-4097 ◽  
Author(s):  
Nicolas Illy ◽  
Ediz Taylan ◽  
Blandine Brissault ◽  
Justyna Wojno ◽  
Sylvie Boileau ◽  
...  
Keyword(s):  
Crown Ether ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Alternative Route ◽  
Anionic Ring

Novel initiators for the synthesis of propylene oxide oligomers by anionic ring opening polymerization

2008 ◽  
Vol 130 (2-4) ◽  
pp. 486-491 ◽  
Author(s):  
G CENDEJAS ◽  
F ARREGUIN ◽  
C FLORES ◽  
I VILLALOBOS ◽  
E FLORES ◽  
...  
Keyword(s):  
Propylene Oxide ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Anionic Ring

Synthesis and properties of polysiloxane graft waterborne polyurethane modified with α-N,N-dihydroxyethylaminopropyl-ω-butylpolydimethylsiloxane

2013 ◽  
Vol 33 (6) ◽  
pp. 527-533 ◽  
Author(s):  
Yitao Yu ◽  
Jing Wang ◽  
Xu Wang
Keyword(s):  
Tensile Strength ◽  
Graft Copolymer ◽  
Ring Opening ◽  
Waterborne Polyurethane ◽  
Ring Opening Polymerization ◽  
Toluene Diisocyanate ◽  
Copolymer Films ◽  
Anionic Ring ◽  
Poly Propylene ◽  
Dimethylol Propionic Acid

Abstract In this study, α-N,N-dihydroxyethylaminopropyl-ω-butylpolydimethylsiloxane was used to prepare waterborne polyurethane-polysiloxane graft copolymer dispersions. α-N,N-dihydroxyethylaminopropyl-ω-butylpolydimethylsiloxane was synthesized via hydroxyl protection, alkylation, anionic ring-opening polymerization, hydrosilylation, and deprotection. Waterborne polyurethane-polysiloxane graft copolymers were prepared by the reaction of poly propylene glycol (PPG), toluene diisocyanate (TDI), 2,2-dimethylol propionic acid (DMPA), 1,4-butanediol (BDO), and α-N,N-dihydroxyethylaminopropyl-ω-butylpolydimethylsiloxane. The water absorption of copolymer films decreased from 163.9 to 17.3% when polysiloxane content increased from 0 to 5%. The tensile strength of the copolymer films increased from 14.0 MPa to 26.3 MPa and decreased when polysiloxane content was more than 3%. The results revealed that the properties of waterborne polyurethane-polysiloxane graft copolymer dispersions and films were improved by grafting polysiloxane chains to polyurethanes.

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