Abstract:
The present invention discloses novel difunctional monomers compound containing pendant clickable furyl group of formula (I), process for the preparation and polymers prepared there from Formula (I) wherein, X is selected from –COOCH 3 , -COOH, -CON 3 , -NCO, –CONHNH 2 , –CH 2 OH n is selected from 2 to 12.
Abstract:
The problem addressed by the invention was to show an alternative to the previously clinically used biodegradable polymers based on monomers having a hydroxycarboxylic acid structure. This problem was solved according to the invention by means of linear polyesters that are produced by esterifying dicarboxylic acids and multivalent alcohols (diols, trioles, or higher-valency alcohols) (figure 1). It was found that modified poly(dicarboxylic acid multi-oil esters) without further additives are suitable as injectable implants. The polymers can be directly injected without using an organic solvent. Furthermore, it was found that modified poly(dicarboxylic acid multi-oil esters) can be mixed with and injected with suitable biocompatible organic solvents or preformed as an implant. The carrier systems are used for the controlled release of active ingredient in human and veterinary medicine.
Abstract:
Block copolymers include a poly β-methyl-δ-valerolactone (PMVL) block. The PMVL blocks can be formed from biosynthesized β-methyl-δ-valero lactone (MVL). The block copolymers can include hard blocks. The block copolymers can be thermoplastic elastomers.
Abstract:
The present invention provides a crystalline polyester resin having a sharp melt property that realizes both fixing performance and blocking property and demonstrates favorable charging performance, in which the crystalline polyester resin for toner, satisfying the following relationships,25 ≤ Tg ≤ 70, and (Tg+273)/(Mp+273) ≥ 0.75, wherein Tg (°C) represents a glass transition temperature of the crystalline polyester resin for toner, and Mp (°C) represents a melting point of the crystalline polyester resin for toner.
Abstract:
Polymeric materials, methods for making the polymeric materials, and photoresist formulations utilizing the polymeric materials are disclosed. In one aspect, a polymeric material is provided including a condensation product of a reaction mixture comprising an aldehyde with a phenolic monomer composition comprising m-cresol, p-cresol, 3,5- dimethyl phenol, and 2,5-dimethyl phenol. The polymeric material may be further contacted with a photoactive compound and a solvent to form a photoresist fomiulation.
Abstract:
The preparation of cyclohexadienes from one or more plant oils is disclosed. The cyclohexadiene can be used to form polymers or derivatized to form other monomers that can be used to form polymeric materials.
Abstract:
Polymers, microspheres, and associated methods are presented for the treatment of chronic and acute pain. An anhydride polymer comprising a biodegradable backbone that comprises one or more pendant residues of a non-steroidal anti-inflammatory (NSAID). NSAIDs may be incorporated in to the polymers as pendant groups that are not part of the polymer backbone. The polymer comprises repeating units that form the biodegradable backbone, wherein in each repeating unit comprises a pendant residue of the NSAID.
Abstract:
The invention is directed to a process for preparing a polyester or copolymer containing ester functionalities, and more in particular to a process for preparing a polyester or copolymer containing ester functionalities using metal mediated ring-opening polymerization. The process of the invention comprises providing an optionally substituted lactone having a ring size of from 6 to 40 carbon atoms; and subjecting said lactone to metal mediated ring-opening polymerization using as catalyst a compound according to general formula (I) wherein - M is selected from the group consisting of A1, Cr, Mn and Co; - X and X' are independently a heteroatom; - Y and Y' are independently selected from the group consisting of O, N, S, P, C, Si, and B; - Z is selected from the group consisting of selected from the group consisting of hydrogen, borohydrides, aluminum hydrides, carbyls, silyls, hydroxide, alkoxides, aryloxides, carboxylates, carbonates, carbamates, amidos, thiolates, phosphides, and halides; - L 1 and L 2 are independently an organic ligand linking X and Y together and linking X' and Y' together, respectively; and - L 3 is an optional organic ligand linking Y and Y' together.