摘要:
Provided is a hetero type monodispersed polyethylene glycol which contains a compound represented by formula (1) ((1): NH 2 -(CH 2 CH 2 O) a -CH 2 CH 2 COOH (in formula (1), a is an integer between 6 and 40)) and in which the following each satisfy a specified relational expression: (A) a chromatogram detected by a differential refractometer when separation is carried out using reversed phase chromatography; (B) a chromatogram detected by a differential refractometer when separation is carried out using cation exchange chromatography; and (C) a chromatogram detected by a differential refractometer when the hetero type monodispersed polyethylene glycol containing a compound represented by formula (1) is derivatized and separation is carried out using anion exchange chromatography.
摘要:
The present invention relates to adhesive compositions containing a pre-polymer which can be obtained by reacting a reaction mixture containing: at least one epoxy resin; at least one polyether diamine or polyether triamine; at least one carboxyl-terminated butadiene acrylonitrile copolymer (CTBN); and rubber particles with a core-shell structure. The invention also relates to methods for curing said compositions, to cured adhesive compositions thus obtained, to the use thereof for bonding components and to the components thus obtained.
摘要:
An accelerator composition for epoxy resin formulations, the accelerator composition including (i) at least one transition metal complex and (ii) at least one salt where the cation of the salt is a metal or an onium cation with a non-nucleophilic anion; and a curable epoxy resin composition including (A) at least one epoxy thermosetting resin, (B) at least one curing agent, and (C) the above accelerator; a curable epoxy resin composition containing the above accelerator; and a cured thermoset produced from the above curable epoxy resin composition.
摘要:
wherein R1-R12 are independently selected from H, alkyl, cycloalkyl, aryl, alkylaryl, or arylalkyl, wherein at least one of R1-R6 and at least one of R7-R12 is different from H, wherein A1-A9 are independently selected from linear or branched alkylenes having 2 to 18 carbon atoms, wherein Z1-Z4 are independently selected OH, CH2CH2CH2NH2, NH2, NHR′ or NR′R″, wherein the degree of amination is
摘要:
The present invention relates to a process for making a hydrophilic polyamide without excessive foaming by delaying the introduction of the hydrophilic monomer. The hydrophilic monomer may be added to the polymerization process after at least a portion of the water has been removed from the process.
摘要:
This disclosure relates to new injectable hydrogel materials that consist of water gellants comprising linear hydrophilic polymers that comprise hydrogen bonding units in the backbone combined with cross-linkable end groups, resulting in dynamic yet firm hydrogel materials that are easily processable, are highly elastic, show adhesive properties and are self-healing and are especially suitable for biomedical applications.
摘要:
A biodegradable crosslinked polymer which is a reaction product of a polymer having aldehyde-reactive functional groups and a polyaldehyde, wherein the polymer having aldehyde-reactive functional groups comprises a biodegradable structure or the polyaldehyde comprises a biodegradable structure.
摘要:
The invention relates to an article comprising a coating, which coating comprises at least two layers, of which the inner layer is a primer layer, comprising a supporting network comprising a supporting polymer, and the outer layer is a functional layer comprising a multifunctional polymerizable compound.