Hyperbranched polymer electrolyte

Hyperbranched polymer electrolytes for high temperature fuel cells 525... 

Hyperbranched polymer electrolytes with a sulfonic acid group at the periphery... 

The application tests of hyperbranched polymers have namely focused on their employment as non-linear optical polymers, polymer electrolytes, biomaterials, supramolecular components (nanomaterials), photolithographic materials, coatings, modifiers and additives and polymeric membranes so far [3]. 

Solid polymer electrolytes (SPE) based on poly ether with hyperbranched side chains... 

Network polymer electrolytes based on polyether with hyperbranched side chains were prepared in the following three steps. ... 

NISHIMOTO, A., AGEHARA, K., FURUYA, N., et al, High lonic conductivity of polyether-based network polymer electrolytes with hyperbranched side chains. Macromolecules, 1999, 32,1541-8. 

HONG, L., SHI, L., TANG, X., Conductivities and spectroscopic studies of polymer electrolytes based on linear polyurethane and hybrid and copolymer of linear and hyperbranched polyurethanes. Macromolecules, 2003,36,4989-94. 

Abstract This chapter describes the apphcation of hyperbranched polymer-based electrolyte membranes for high temperature fuel cells. Hyperbranched polymers with a sulfonic acid group or a phosphonic acid one as a proton source were synthesized and the proton conductivity, thermal property and fuel cell performance of their polymers and crosslinked membranes were investigated. The concept of the proton conduction coupled with the polymer chain motion was proposed for high temperature fuel cells. 

Hyperbranched polymer with a sulfonic acid group (HBP-SA) and semi-interpenetrated electrolyte membrane (HBP-SA-co-HBP-Ac)... 

Li et al (2001, 2003) prepared a kind of hyperbranched solid polymer electrolyte with a low ion conductivity of about 10 S/cm at room temperature. Later, they added 10 wt% BaTiOs as ceramic fillers into this SPE, making the ion conductivity rise to 1.4 x 10 S/cm. 

YE L, GAO p, WU F, BAI Y and FENG z G (2007c), Synthesis and application as polymer electrolyte of hyperbranched copolyethers derived from cationic ring-opening polymerization of 3-(2-(2-(2-methoxy- ethoxy)ethoxy)ethoxy)methyl- and 3-hydroxymethyl-3 -methyloxetane , Polymer, 48 1550-1556... 

K. Nogami, K. Sakamoto, T. Hayakawa, and M. Kakimoto. 2007. The effects of hyperbranched poly(siloxysilane)s on conductive polymer aluminum solid electrolytic capacitors. / Power Sources 166(2) 584-589. 

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