Bibenzyl- and stilbene-core compounds with non-polar linker atom substituents as selective ligands for estrogen receptor beta
作者:Michael Waibel、Meri De Angelis、Fabio Stossi、Karen J. Kieser、Kathryn E. Carlson、Benita S. Katzenellenbogen、John A. Katzenellenbogen
DOI:10.1016/j.ejmech.2009.02.006
日期:2009.9
A series of structurally simple bibenzyl-diol and stilbene-diol core molecules, structural analogs of the well-known hexestrol and diethylstilbestrol non-steroidal estrogens, were prepared and evaluated as estrogen receptor (ER) subtype-selective ligands. Analysis of their ERα and ERβ binding showed that certain substitution patterns engendered binding affinities that were >100-fold selective for ERβ
Disclosed are novel cross-linkable end-cappers for oligo-and polyamides. End-capped oligo-and polyamides comprising such an end-capper may be cured at a lower temperature compared to oligo-and polyamides end-capped with PEPA.
Disclosed are novel cross-linkable end-cappers for oligo-and polyimides. End-capped oligo-and polyimides comprising such an end-capper may be cured at a lower temperature compared to oligo-and polyimides end-capped with PEPA.
An improved syntactic foam composition and method for making same
申请人:TEXACO DEVELOPMENT CORPORATION
公开号:EP0226066A2
公开(公告)日:1987-06-24
Syntactic foam with improved processing characteristics is disclosed wherein a blend of coupling agents and alkylphenol alkoxylates are used to improve processibility and reduce cure time of the syntactic foam system.
A method for the preparation of polycarbonate resins bearing terminal ester groups comprises the interfacial polymerization of a dihydric phenol with a carbonyl halide in the presence of a molecular weight controlling proportion of a compound of the formula:
wherein R represents a hydrocarbyl group amenable to beta-elimination upon thermolytic degradation. The product resins are useful as intermediates in the preparation of copolymers with, for example, polyamides.
一种制备带有末端酯基的聚碳酸酯树脂的方法,包括在分子量控制比例的式化合物存在下,使二元苯酚与羰基卤化物发生界面聚合反应:
其中 R 代表烃基,在热解降解时易发生β-消除。产品树脂可用作制备与聚酰胺等共聚物的中间体。