A synthetic strategy toward isosorbide polycarbonate with a high molecular weight: the effect of intermolecular hydrogen bonding between isosorbide and metal chlorides

2019 ◽  
Vol 10 (24) ◽  
pp. 3380-3389 ◽  
Author(s):  
Ming Zhang ◽  
Wenqin Lai ◽  
Lili Su ◽  
Yu Lin ◽  
Guozhang Wu
Keyword(s):  
Molecular Weight ◽  
Hydrogen Bonding ◽  
High Molecular Weight ◽  
Diphenyl Carbonate ◽  
Intermolecular Hydrogen Bonding ◽  
Polycondensation Reaction ◽  
Metal Chlorides ◽  
Synthetic Strategy

Isosorbide polycarbonate (ISB-PC) was prepared by melt transesterification and polycondensation reaction by employing ISB and diphenyl carbonate (DPC) as monomers.

Synthesis of high-molecular-weight aliphatic polycarbonates from diphenyl carbonate and aliphatic diols by solid base

2016 ◽  
Vol 424 ◽  
pp. 77-84 ◽  
Author(s):  
Ziqing Wang ◽  
Xiangui Yang ◽  
Jianguo Li ◽  
Shaoying Liu ◽  
Gongying Wang
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Solid Base ◽  
Diphenyl Carbonate

Dynamics of concentrated solutions of low molecular weight phenolics and poly(2-vinylpyridine): Role of intermolecular hydrogen bonding

Polymer ◽  
2009 ◽  
Vol 50 (11) ◽  
pp. 2424-2435 ◽  
Author(s):  
Pornpen Atorngitjawat ◽  
Robert J. Klein ◽  
Amanda G. McDermott ◽  
Kevin A. Masser ◽  
Paul C. Painter ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Hydrogen Bonding ◽  
Low Molecular Weight ◽  
Intermolecular Hydrogen Bonding ◽  
Concentrated Solutions

An Easy Route for the Preparation of Soluble High Molecular Weight Polymer Under Friedel-Crafts Conditions

2014 ◽  
Vol 887-888 ◽  
pp. 989-992 ◽  
Author(s):  
Cong Qi Li ◽  
Bo Yu ◽  
Cheng Wang ◽  
Yong Xi Li ◽  
Yu Chen
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
High Yield ◽  
Hydroxyl Groups ◽  
Synthetic Method ◽  
Polycondensation Reaction ◽  
Hydrogen Atoms ◽  
High Molecular Weight Polymer ◽  
Molecular Weight Polymer ◽  
Short Reaction Time

A facile synthetic method that would be applied to polycondensation reaction between monomer A with bifunctional hydroxyl groups and monomer B with bifunctional reactive hydrogen atoms under Friedel-Crafts conditions was described. This approach, which has the advantage of short reaction time, high yield and simple synthesis operation, opens a way to prepare soluble high molecular weight polymers by the polycondensation reaction between monomer A with bifunctional hydroxyl groups and monomer B with bifunctional reactive hydrogen atoms under Friedel-Crafts conditions.

THE STRUCTURE OF ALUMINUM DI- AND TRI-SOAPS

1957 ◽  
Vol 35 (8) ◽  
pp. 799-816 ◽  
Author(s):  
A. E. Leger ◽  
R. L. Haines ◽  
C. E. Hubley ◽  
J. C. Hyde ◽  
H. Sheffer
Keyword(s):  
Molecular Weight ◽  
Hydrogen Bonding ◽  
Light Scattering ◽  
High Molecular Weight ◽  
Significant Role ◽  
Infrared Absorption ◽  
Lauric Acid ◽  
Aluminum Isopropoxide ◽  
Carboxylate Groups ◽  
Infrared Measurements

Confirmation of the existence of aluminum trilaurate has been obtained by using infrared absorption to follow the course of the reactions of trimethylaluminum and aluminum isopropoxide with lauric acid. The trisoap is shown to exist as micelles of high molecular weight in solution, the size decreasing on dilution or elevation of temperature. On hydrolysis to the disoap, hydrogen bonding does not appear to play a significant role in the formation of polymer structures. Coordination of carboxylate groups with aluminum is shown to be a major feature of the structure of both tri- and di-soaps. Spectral assignments in the 6.0 to 6.4 μ region have been made for various types of inter- and intra-molecular coordination. The effects of dilution, hydrolysis, and hydrochlorination of aluminum trilaurate in solution have been assessed by viscosity, light-scattering, and infrared measurements.

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