Thiol containing lipids as provided which are used to construct polymerizable-deplymerizable vesicles that may be used as slow release in vivo medication delivery systems.
Preparation of highly pure alpha-methylstyrene polymer
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0240212A2
公开(公告)日:1987-10-07
An improved process for the anionic polymerization of alpha-methylstyrene polymers employs an organolithium initiator and, as an initiator activator compound, a sodium-, potassium-, rubidium- or cesiumderivative of an oxygen-, sulfur- or nitrogen-containing organic compound. The process permits the preparation of polymers such as copolymers of styrene and alpha-methylstyrene having high purity and reduced color.
A process for producing a random copolymer and random copolymer
申请人:PHILLIPS PETROLEUM COMPANY
公开号:EP0058217B1
公开(公告)日:1987-05-06
Inorganic nanocrystals with organic coating layer, their method of manufacture and materials constituted by said nanocrystals
申请人:Reiss Peter
公开号:US20050266246A1
公开(公告)日:2005-12-01
Nanocrystal comprising an inorganic core consisting of least one metal and/or at least one semi-conductor compound comprising at least one metal, the external surface of said nanocrystal being provided with an organic coating layer, consisting of at least one ligand compound of formula (I):
X—Y-Z (I)
in which X represents a 1,1-dithiolate or 1,1-diselenoate group that is linked by the two atoms of sulphur or selenium to an atom of metal of the external surface of said nanocrystal; Y represents a spacer group, such as a group capable of allowing a transfer of charge or an insulating group; Z is a group chosen from among groups capable of communicating specific properties to the nanocrystal. Their methods of manufacture.