Synthesis and Properties of Carborane-Containing Dendronized Polymers

Autor:	Stephanie E. A. Gratton, S. Rahima Benhabbour, Matthew C. Parrott, Alex Adronov
Rok vydání:	2007
Předmět:	chemistry.chemical_classification Polymers and Plastics Organic Chemistry Radical polymerization Polymer Dendronized polymer Macromonomer Inorganic Chemistry Polyester chemistry.chemical_compound Monomer chemistry Polymerization Polymer chemistry Materials Chemistry Carborane
Zdroj:	Macromolecules. 40:5678-5688
ISSN:	1520-5835 0024-9297
DOI:	10.1021/ma0702039
Popis:	Carborane-containing dendronized polymers were successfully synthesized using two different approaches up to the fourth generation. Nitroxide-mediated polymerization (NMP) was effective for the polymerization of carborane-functionalized styrenic monomers, leading to well-defined polymers with high boron content and narrow molecular weight distributions (PDI < 1.1). The resulting carborane-functionalized polymers could then be dendronized using a divergent approach to introduce aliphatic polyester dendrons of generation 1−4 grafted from the polymer backbone. This first approach afforded a maximum degree of dendronization of 70%. To increase the degree of dendronization, a first-generation macromonomer was polymerized using NMP to yield a fully functionalized first-generation dendronized polymer. This material was also dendronized up to the fourth generation. Both approaches produced water-soluble dendronized polymers (1 mg/mL in pure water) with high molecular weights (in excess of 70 kDa). It was found th...
Databáze:	OpenAIRE
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