Han, Xiaolong; Jin, Yujuan; Wang, Bohua; Tian, Huafeng; Weng, Yunxuan published the artcile< Reinforcing and Toughening Modification of PPC/PBS Blends Compatibilized with Epoxy Terminated Hyperbranched Polymers>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is epoxy terminated hyperbranched polyester PPC PBS blend preparation property.
Polypropylene carbonate (PPC)/polybutylene succinate (PBS) blends were prepared by melt-blending with terminal epoxy-based hyperbranched polymers (EHBP) as modifier. The thermal properties, mech. properties, rheol. properties and fracture morphol. were characterized by dynamic thermomech. analyzer, thermogravimetric analyzer, electronic universal testing machine, rotating rheometer and scanning electron microscope. Upon addition of EHBP, the difference between the glass transition temperature of PPC and PBS became smaller, indicating the compatibility of PPC and PBS were improved by EHBP. Furthermore, by adding 0.5phr of EHBP, the impact strength increased from 9.55 to 17.31 kJ/m2, the elongation at break increased from 136.29 to 204.39%, and the tensile strength increased from 10.00 to 16.84 MPa. The fracture surface of the PPC/PBS blends became rough with the increase of EHBP, even with large filamentous structures and tiny holes, which further demonstrated that EHBP acted as an excellent toughening effect on PPC/PBS. Gel content anal. confirmed that both phys. and chem. micro-crosslinking were formed after incorporation of EHBP.
Journal of Polymers and the Environment published new progress about Branched polymer chains. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics