A central issue in the study of polymer physics is to understand the relation between the geometrical properties of macromolecules and various dynamics, most of which are encoded in the Laplacian spectra of a related graph describing the macrostructural structure. In this paper, we introduce a family of treelike polymer networks with a parameter, which has the same size as the Vicsek fractals m...

Lignin is one of the most abundant renewable biomaterials which can be extracted from plants and which represents approximately 15–30% of their total mass besides cellulose. In spite of these high amounts and its ready availability, lignin is normally considered as a non-preferred byproduct from the paper industry for example with over 30 mio tons per annum. A major reason for this is probably ...

We report novel polymeric materials that may be used as viscosity index improvers (VII) for lubricant applications. Our efforts included probing the comb-burst hyper-branched aryl polyester architecture for beneficial viscosity and friction behavior when utilized as an additive in a group I oil. The monomer was designed as to undergo polymerization via polycondensation within the architectural ...

Salivary adenoid cystic carcinoma (SACC) is associated with a high rate of lung metastasis. When lung metastasis occurs, the effects of traditional chemotherapy on SACC are poor. Hyperbranched polymer drug delivery (degradable hyperbranched polyglycerols, dHPGs) can be used as a strategy to load several drugs, and obtain beneficial effects on SACC lung metastasis through enhanced permeability a...

Polyethyleneimine (PEI) is a common polymer used in many industrial applications and research, especially surface chemistry. It available wide range of molecular weights different degrees branching. classified as linear or branched sometimes the term hyperbranched also used. This description, however, quite rough, which limits possibility to correlate structure PEI its properties. The aim this ...

Self-assembly of hyperbranched polyethylenimine (PEI) and fatty acids leads to supramolecular inverted micellar structures that are able to irreversibly transfer water-soluble guest molecules into organic solvents.

S OF LECTURES UK POLYMER SHOWCASE 7/8 SEPTEMBER 2004 CEDAR COURT, WAKEFIELD LIST OF ORAL PRESENTATIONS Professor Tom McLeish, Director Searching Through Polymer Dynamics with the IRC in Polymer Science & Technology Finest-toothed Comb.... Dr. Martin Buzza Rheology of Hyperbranched Polymers IRC, Leeds Dr. Lian Hutchings HyperMacs and DendriMacs. The next generation of IRC, Durham well-defined, h...

A peptide aptamer, which was originally identified by affinity screening for hyperbranched poly(phenylene vinylene) (hypPPV), functioned as an excellent dispersant for hypPPV nanoparticle formation.

ReceiVed January 17, 2008 ReVised Manuscript ReceiVed February 21, 2008 Introduction. In recent years, much attention is paid to the synthesis of copolymers with different compositions and chain architectures, such as linear, grafted, comb-shaped, star-shaped, hyperbranched, and dendrimeric chains with the purpose to establish architecture-property relationships in bulk and in solution. Of thes...