ATRP of POSS monomers revisited: toward high-molecular weight methacrylate?POSS (co)polymers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00434548" target="_blank" >RIV/61389013:_____/14:00434548 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1021/ma501541g" target="_blank" >http://dx.doi.org/10.1021/ma501541g</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/ma501541g" target="_blank" >10.1021/ma501541g</a>

Result language

angličtina

Original language name

ATRP of POSS monomers revisited: toward high-molecular weight methacrylate?POSS (co)polymers

Original language description

For the first time, ATRP was successfully employed for homopolymerization of a commercial methacrylate-functionalized polyhedral oligomeric silsesquioxane (POSS) monomer, iBuPOSSMA, to high molecular weights. It was found that iBuPOSSMA has a low ceilingtemperature (Tc); therefore, low temperatures and/or high initial monomer concentrations need to be used in order to avoid low degrees of polymerization that had been observed previously. The values of Tc, as well as of the polymerization enthalpy ?Hp and entropy ?Sp were determined to be 130 °C (at [M]0 = 1 M), 41 kJ mol?1, and 101 J mol?1 K?1, respectively. Under optimized conditions, poly(iBuPOSSMA) homopolymers having low dispersity and high Mn, ranging from 23?000 to 460 000, were obtained in a well-controlled ATRP process. Moreover, various block copolymers having high-Mn poly(iBuPOSSMA) blocks were prepared by copolymerization of iBuPOSSMA with methyl methacrylate and styrene.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CD - Macromolecular chemistry

OECD FORD branch

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Project

<a href="/en/project/GAP106%2F12%2F0844" target="_blank" >GAP106/12/0844: Synthesis of novel types of organic-inorganic hybrid copolymers (nanocomposites) and study of their properties</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Macromolecules

ISSN

0024-9297

e-ISSN

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Volume of the periodical

47

Issue of the periodical within the volume

21

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

7311-7320

UT code for WoS article

000344905800006

EID of the result in the Scopus database

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