Published in Chinese Journal of Polymer Science
A brominated hyperbranched polyether has been synthesized from cyanuric chloride and sodium salt of tetrabromobisphenol-A by an A2 + B3 approach. The synthesized polyether was characterized by 1H-NMR, 13C-NMR, UV, FTIR spectroscopy and X-ray diffraction studies, measurements of solution viscosity, molecular weight and solubility and elemental and t...
Published in Chinese Journal of Polymer Science
Acrylonitrile/N-[4-(aminosulfonyl)phenyl]acrylamide (AN/ASPAA) copolymers were synthesized and used as a host of lithium ion conducting electrolytes. The composition, molecular weight and molecular weight distribution of AN/ASPAA copolymers were determined, and the influence of copolymer composition on the glass temperature of AN/ASPAA copolymers a...
Published in Chinese Journal of Polymer Science
A simple and effective way to prepare poly(acrylate)s, such as poly(methacrylate), poly(butyl acrylate) and poly(butyl methacrylate), has been achieved by using the single component aluminum-based compounds, such as modified methylaluminoxane (MMAO), triisobutylaluminium (TIBA) and triethylaluminium (TEA) as initiators. Effective initiations and hi...
Published in Chinese Journal of Polymer Science
Transparent ZrO2-polyurethane nanocomposites with high refractive index were prepared by dispersing ZrO2 nanoparticles in a polyurethane matrix via ligand molecule engineering. TEM showed that the inorganic particles were well dispersed within the polymeric network with no significant macroscopic agglomeration. By controlling the phase separation i...
Published in Chinese Journal of Polymer Science
Photoinitiated crosslinking of ethylene-propylene-diene terpolymer (EPDM) blends filled with calcium carbonate, talc and calcined kaolin (CK) in the presence of benzil dimethyl ketal as photoinitiator and trimethylolpropane triacrylate as crosslinker and their related properties have been studied by different analytical methods. The results from ge...
Published in Chinese Journal of Polymer Science
A relatively high predetermined crystallization temperature (135°C) was chosen to grow well developed iPP spherulites, then the partial melting was carried out at a temperature of 165°C, where the preformed spherulites were seen to only decrease their size but not completely melted. The crystallization behavior of partially melted isotactic polypro...
Published in Chinese Journal of Polymer Science
In the present work, new thermally stable polymers containing 1,3,4-oxadiazole units have been synthesized through Huisgen reaction of the aromatic bis-tetrazole compounds with the aromatic/aliphatic bis-acid chlorides in pyridine as solvent. The obtained polymers are insoluble or slightly soluble in polar aprotic solvents such as DMSO and DMF. The...
Published in Chinese Journal of Polymer Science
Based on monomer 2,6,12-triaminotriptycene, hyperbranched polyimides with high molecular weight modified with different terminal functional groups were obtained by polymerization of A2 + B3 system. The prepared hyperbranched polyimides had good solubility in CHCl3, DMF and THF, and performed no detective Tgs in the range of 50–330°C and high Tds (5...
Published in Chinese Journal of Polymer Science
The cationic ring-opening polymerization of 1-azabicyclo[4.2.0]octane, commonly called conidine (1) was studied with some chiral tricyclic amino acid esters (6a–6f) as acylation agents to obtain optically active biopolymers (8a–8f) of the different masses. The structures of the new compounds were confirmed by FT-IR, UV and NMR, and the distribution...
Published in Chinese Journal of Polymer Science
A diamine containing ether and ester units, as basic monomer for the preparation of polyamides, was prepared via three consecutive reactions. Nucleophilic substitution reaction of 1,4-dihydroxy benzene with 4-nitrobenzoyl chloride produced 4-hydroxyphenyl 4-nitrobenzoate (HPNB). Reduction of nitro groups to amino groups using Fe and HCl resulted in...
