This invention relates to novel copolymers based on the copolymerization product of hydroxyl (meth)acrylate esters and (meth)acrylate esters of hydroxyalkyl carbamates; and other homopolymers and copolymers base on (meth)acrylate esters. In addition, novel copolymer blends may be formulated from individual copolymers based on hydroxyl (meth)acrylate esters and individual (meth)acrylate esters of hydroxyalkyl carbamates. Mixtures including crosslinking agents may be used to provide curable copolymer or copolymer-blend coating compositions.
One-Pot Synthesis of Disubstituted Urea from Carbon Dioxide, Propylene Oxide, and Amines Catalyzed by Imidazolium-Tetraiodoindate
作者:Guang Meang Son、Cong Chien Truong、Dinesh Kumar Mishra、Vivek Mishra、Yong Jin Kim
DOI:10.1002/bkcs.11363
日期:2018.2
In this article, synthesis of 1,3‐disubstituted urea (DSU) from three component reagent systems comprising amine, carbon dioxide, and propyleneoxide is described. DSU is synthesized in the presence of a variety of ionic liquids (ILs) with/without promoters. Among used ILs, 1‐butyl‐3‐methylimidazolium tetraiodoindateIII (represented as [Bmim][InI4]) is found to give the highest DSU product. A serious
Rational Design of Pseudozyma antarctica Lipase B Yielding a General Esterification Catalyst
作者:Danni Liu、Peter Trodler、Sabine Eiben、Katja Koschorreck、Monika Müller、Jürgen Pleiss、Steffen C. Maurer、Cecilia Branneby、Rolf D. Schmid、Bernhard Hauer
DOI:10.1002/cbic.200900776
日期:2010.4.12
Aiming for full conversion: Pseudozyma antarctica lipase B mutants with an increased substrate binding site (shown) are able to convert the disfavored S enantiomer of secondary alcohols with high activity.