Organic Catalyst-Mediated Ring-Opening Polymerization for the Highly Efficient Synthesis of Polyester-Based Star Polymers

2012 ◽  
Vol 1 (6) ◽  
pp. 681-686 ◽  
Author(s):  
Jing M. Ren ◽  
Qiang Fu ◽  
Anton Blencowe ◽  
Greg G. Qiao
Keyword(s):  
Ring Opening ◽  
Star Polymers ◽  
Ring Opening Polymerization ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Organic Catalyst

Construction of polyphosphoesters with the main chain of rigid backbones and stereostructures via organocatalyzed ring-opening polymerization

2020 ◽  
Vol 11 (20) ◽  
pp. 3475-3480
Author(s):  
Yu-Jia Zheng ◽  
Guan-Wen Yang ◽  
Bo Li ◽  
Guang-Peng Wu
Keyword(s):  
Ring Opening ◽  
Main Chain ◽  
Catalyst System ◽  
Ring Opening Polymerization ◽  
System P ◽  
Organic Catalyst

A highly stereoregular polyphosphoester with a rigid cyclohexylene structure in the main chain was constructed via ring-opening polymerization (ROP) in the presence of an organic catalyst system.

Highly efficient synthesis and characterization of multiarm and miktoarm star-long-branched polymers via click chemistry

RSC Advances ◽  
2015 ◽  
Vol 5 (43) ◽  
pp. 34466-34474 ◽  
Author(s):  
Li Ma ◽  
Yichao Lin ◽  
Haiying Tan ◽  
Jun Zheng ◽  
Feng Liu ◽  
...  
Keyword(s):  
Click Chemistry ◽  
High Efficiency ◽  
Star Polymers ◽  
Branched Polymers ◽  
Synthesis And Characterization ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Miktoarm Star ◽  
Star Copolymer

Two series of 3–12 multiarm star polymers and 4-miktoarm star copolymer of butadiene and styrene, in which the Mn of arm was higher than 20 kg mol−1, were synthesized with high efficiency (from 85.0% to 96.1%) via click chemistry.

scholarly journals Highly efficient synthesis of C3-symmetric O-alkyl substituted triphenylenes and related Mannich derivatives

2018 ◽  
Vol 5 (16) ◽  
pp. 2458-2462 ◽  
Author(s):  
Giacomo Berton ◽  
Giuseppe Borsato ◽  
Roberta Zangrando ◽  
Andrea Gambaro ◽  
Fabrizio Fabris ◽  
...  
Keyword(s):  
Ring Opening ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Selective Ring Opening

C3-Symmetric tris-benzyl-O-substituted hexahydroxytriphenylene (HHTP) was prepared through selective ring opening with DIBAL-H in 48% yield (38% from HHTP in a two-step synthesis).

Green and sustainable synthesis of poly(δ-valerolactone) with TBD catalyzed ring-opening polymerization reaction

2021 ◽  
Author(s):  
Kai Cheng ◽  
Shiyao Lu ◽  
Kai Wang ◽  
Guangsheng Luo
Keyword(s):  
Efficient Method ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Polymerization Reaction ◽  
Aliphatic Polyester ◽  
Synthetic Route ◽  
Highly Efficient

Ring-opening polymerization (ROP) of lactones catalyzed by 1,5,7-triazabicyclo[4,4,0]decane-5-ene (TBD) is a highly efficient method for synthesizing aliphatic polyester materials. In order to create a green and sustainable synthetic route of...

A highly efficient metal-free protocol for the synthesis of linear polydicyclopentadiene

2021 ◽  
Author(s):  
Xuejin Yang ◽  
Laura M. Murphy ◽  
Farihah M. Haque ◽  
Scott M. Grayson ◽  
Andrew J. Boydston
Keyword(s):  
Ring Opening ◽  
Efficient Synthesis ◽  
Ring Opening Metathesis Polymerization ◽  
Free Ring ◽  
Metathesis Polymerization ◽  
Metal Free ◽  
Highly Efficient

We have developed a highly efficient synthesis of linear polydicyclopentadiene (pDCPD) via photoredox mediated metal-free ring-opening metathesis polymerization (MF-ROMP) and investigated the Tg–Mn dependence of linear pDCPD.

Dissolution of Cellulose and Synthesis of Cellulose-Graft-Poly (L-Lactide) via Ring-Opening Polymerization in an Ionic Liquid

2012 ◽  
Vol 476-478 ◽  
pp. 1897-1900 ◽  
Author(s):  
Shu Xiao ◽  
Lin Dai ◽  
Jing He
Keyword(s):  
Ionic Liquid ◽  
Hydrogen Bonds ◽  
1H Nmr ◽  
Ring Opening ◽  
Graft Copolymerization ◽  
Ring Opening Polymerization ◽  
Intramolecular Hydrogen Bonds ◽  
Ft Ir ◽  
Intramolecular Hydrogen ◽  
Organic Catalyst

Dissolution and homogeneous graft copolymerization of cellulose were performed in an ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl) with L-lactide. The best synthetic condition of the cellulose-graft-poly (L-) (cellulose-g-PLLA) was that cellulose 0.6g, L-lactide 5.34g and 4-dimethylaminopyri lactide dine (DMAP) as an organic catalyst 0.69g reacted for 12 hours at 80°C. The synthesized AmimCl and cellulose graft copolymers were characterized by FT-IR, 1H-NMR, GPC, TG and WAXD. The results indicated that AmimCl dissolved cellulose directly by destroying intermolecular and intramolecular hydrogen bonds in cellulose and the grafting rate of the polymer reached 4.44, which was higher than that reported in AmimCl with Sn(oct)2 as a catalyst.

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