Thermoresponsive Alignment Media in NMR Spectroscopy: Helix Reversal of a Copolyaspartate at Ambient Temperatures
作者:Mira Schwab、Volker Schmidts、Christina M. Thiele
DOI:10.1002/chem.201803540
日期:2018.9.25
application of polyphenethylaspartates as helically chiral alignmentmedia. The thermoresponsivity observed for these polymers offers the possibility to measure different orientations of analytes before and after helix reversal of the alignment medium at 373 K. Herein we present a synthesized copolymer of phenethyl‐ and benzylaspartate as a new alignment medium undergoing this helix reversal at 303–313 K.
Large-scale synthesis of α-amino acid-<i>N</i>-carboxyanhydrides
作者:J. Edward Semple、Bradford Sullivan、Kevin N. Sill
DOI:10.1080/00397911.2016.1249289
日期:2017.1.2
Purification methods including repeated crystallizations, extraction, and flash column chromatography have been devised. However, these methods are not easily amendable to large-scale NCA preparations. This article describes the synthesis of numerous highly purified NCAs on a >100 g scale using a simple filtration step through diatomaceous earth (celite). The resulting NCAs provided polyethylene glycol
SYNTHESIS OF HYBRID BLOCK COPOLYMERS FROM DIFLUOROACETATE AMMONIUM SALTS
申请人:Sill Kevin N.
公开号:US20090286938A1
公开(公告)日:2009-11-19
The present invention provides polymerization initiators and uses thereof.
本发明提供了聚合引发剂及其使用方法。
POLYMERIC MICELLES FOR POLYNUCLEOTIDE ENCAPSULATION
申请人:Mirosevich Janni
公开号:US20100278927A1
公开(公告)日:2010-11-04
The present invention provides micelles having a polynucleotide encapsulated therein, the micelle comprising copolymers comprising hydrophobic moieties in a cationic complexing block. The invention further provides methods of preparing and using said micelles, and compositions thereof.
POLYMERS FOR POLYNUCLEOTIDE ENCAPSULATION
申请人:Cardoen Gregoire
公开号:US20100292432A1
公开(公告)日:2010-11-18
The present invention provides block copolymers comprising hydrophobic moieties in a cationic complexing block, methods of preparing the same, and intermediates thereto. The compounds are useful in a variety of applications such as the assembly of micellar polyion complexes. The invention further provides methods of using said compounds and compositions thereof.