Microporous hyper-cross-linked polyacetylene networks: covalent structure and texture modification by reversible Schiff-base chemistry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00532071" target="_blank" >RIV/61389013:_____/20:00532071 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/20:10419845

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0014305720316281?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0014305720316281?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.eurpolymj.2020.109914" target="_blank" >10.1016/j.eurpolymj.2020.109914</a>

Result language

angličtina

Original language name

Microporous hyper-cross-linked polyacetylene networks: covalent structure and texture modification by reversible Schiff-base chemistry

Original language description

We present controlled de-cross-linking and detemplating for modifying the porosity and covalent structure of porous organic polymers. HC≡C-C6H4-CH=N-C6H4-N=CH-C6H4-C≡CH and HC≡C-C6H4-N=CH-C6H4-CH=N-C6H4-C≡CH type monomers (-C6H4- is meta- and para-phenylene) having two polymerizable ethynyl groups and two hydrolysable azomethine groups per molecule were copolymerized with 4,4-diethynylbiphenyl and tetrakis(4-ethynylphenyl)methane into porous polyacetylene-type hyper-cross-linked networks. Two types of cross-links were involved in cross-linking: hydrolysable Schiff-base-type cross-links and stable non-hydrolysable cross-links. Postpolymerization hydrolysis caused cleavage of the azomethine groups and release of phenylenediamine or diformylbenzene template segments from the Schiff-base-type cross-links. Although hydrolysis resulted in partial de-cross-linking, stable cross-links remaining in the networks prevented the collapse of the porous texture. Partial de-cross-linking led to an increase in the micropore diameter and, moreover, –HC=O or –NH2 groups were introduced into the networks in this way. Modified networks decorated with above groups acted as chemisorbents for trapping aldehydes or primary amines under formation of azomethine links between the network and adsorptive.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10404 - Polymer science

Project

<a href="/en/project/GA20-01233S" target="_blank" >GA20-01233S: Rational design of advanced soft functional materials guided by advanced solid-state NMR spectroscopy and high-performance electron microscopy</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

European Polymer Journal

ISSN

0014-3057

e-ISSN

—

Volume of the periodical

136

Issue of the periodical within the volume

5 August

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

1-14

UT code for WoS article

000562571200013

EID of the result in the Scopus database

2-s2.0-85088994756