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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhang, Daohong Jia, Demin Zhou, Zihu |
| Copyright Year | 2009 |
| Abstract | Low viscosity aromatic hyperbranched polyester epoxy resin (HTBE) was synthesized by the reaction between epichlorohydrin (ECH) and carboxyl-end hyperbranched polyester (HTB) which was prepared from inexpensive materials A2 (1,4-butanediol glycol, BEG) and B$_{3}$ (trimellitic anhydride, TMA) by pseudo one-step method. The molar mass of the HTB was calculated from its acid value by “Recursive Probability Approach”. The degree of branching (DB) of the HTB was characterized by model compounds and$^{1}$H NMR-minus spectrum technology, and the DB of the HTB was about 0.47∼0.63. The viscosity and epoxy equivalent weight of the HTBE were 3,600∼5,000 cp and lower than 540 g/mol respectively. The reaction mechanism and structure of the AB$_{2}$ monomer, HTB and HTBE were investigated by MS,$^{1}$H NMR and FTIR spectra technology. The molecular size of HTBE is under 8.65 nm and its shape is ellipsoid-like as determined by molecular simulation. |
| Starting Page | 289 |
| Ending Page | 295 |
| Page Count | 7 |
| File Format | |
| ISSN | 15985032 |
| Journal | Macromolecular Research |
| Volume Number | 17 |
| Issue Number | 5 |
| e-ISSN | 20927673 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | hyperbranched epoxy resin low viscosity degree of branching molecular simulation Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Physical Chemistry Characterization and Evaluation of Materials Nanochemistry Nanotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Chemical Engineering Polymers and Plastics |
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