Literature DB >> 21638446

3-Ethylated N-Vinyl-2-pyrrolidone with LCST Properties in Water.

Taina Trellenkamp1, Helmut Ritter.   

Abstract

The monomer 3-ethyl-1-vinyl-2-pyrrolidone (3) and the homopolymer poly(3-ethyl-1-vinyl-2-pyrrolidone) (5) have been synthesized. Polymer 5 is soluble in water and shows a critical temperature (T(c) ) of 27 °C. The presence of cyclodextrin causes a slight shift of the T(c) . The lower critical solution temperature (LCST) could be varied between 27 and 40 °C by copolymerization with N-vinyl-2-pyrrolidone. A linear correlation between the T(c) and the copolymer composition is observed.
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Entities:  

Year:  2009        PMID： 21638446     DOI： 10.1002/marc.200900250

Source DB:  PubMed          Journal:  Macromol Rapid Commun        ISSN： 1022-1336            Impact factor:   5.734


  3 in total

1.  From N-vinylpyrrolidone anions to modified paraffin-like oligomers via double alkylation with 1,8-dibromooctane: access to covalent networks and oligomeric amines for dye attachment.

Authors:  Daniela Obels; Melanie Lievenbrück; Helmut Ritter
Journal:  Beilstein J Org Chem       Date:  2016-07-06       Impact factor: 2.883

2.  Oligomeric epoxide-amine adducts based on 2-amino-N-isopropylacetamide and α-amino-ε-caprolactam: Solubility in presence of cyclodextrin and curing properties.

Authors:  Julian Fischer; Helmut Ritter
Journal:  Beilstein J Org Chem       Date:  2013-12-05       Impact factor: 2.883

3.  Influence of cyclodextrin on the UCST- and LCST-behavior of poly(2-methacrylamido-caprolactam)-co-(N,N-dimethylacrylamide).

Authors:  Alexander Burkhart; Helmut Ritter
Journal:  Beilstein J Org Chem       Date:  2014-08-21       Impact factor: 2.883
  3 in total

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