摘要:
Ink contains at least one of a compound represented by the following chemical formula 1, a compound represented by chemical formula 2, a compound represented by chemical formula 3, or a compound represented by chemical formula 4.
摘要:
Provided is a polymer micro-needle array chip comprising a micro-needle array and a substrate on which the micro-needle array is placed; a polyacrylamide polymer with a molecular weight of 1.0x10 4 -2.0x10 5 , Vickers hardness of 150-600 HV and impact strength of 5-30 J/m is used as the material of the micro-needle array. The polymer micro-needle array chip has high mechanical strength and a sharp needle tip; and it can easily be dissolved or can swell on contact with a water-containing environment, which helps the drug to be released slowly in the skin.
摘要:
The present invention relates to a process for continuously preparing polymer by RAFT solution polymerisation, the process comprising: introducing into a flow reactor a reaction solution comprising one or more ethylenically unsaturated monomers, RAFT agent, non-reactive solvent and free radical initiator; and promoting RAFT polymerisation of the one or more ethylenically unsaturated monomers within the reactor so as to form a polymer solution that flows out of the reactor.
摘要:
The invention relates to graft copolymers, their preparation, and compositions, such as electrophoresis separation media, containing the same; also to ultra-high molecular weight poly(NN-dimethylacrylamide) ('poly(DMA)') polymers, their preparation, and compositions, such as electrophoresis separation media, containing the same; and more particularly to supports, such as capillaries, containing these polymers and methods for separating biomolecules, especially polynucleotides, using capillary electrophoresis. The graft copolymers can be prepared by, e.g., grafting polyacrylamide units onto a poly(DMA) backbone. Separation media comprising such graft copolymers or ultra-high molecular weight poly(DMA) polymers yield superior performance in the analysis and separation of biomolecules by capillary electrophoresis.
摘要:
The invention provides a hydrophilic member and a support for a planographic printing plate with a hydrophilic surface having hydrophilic graft chains and a cross-linked structure on a substrate surface formed by hydrolysis of an alkoxide of a metal selected from Si, Ti, Zr, and Al and condensation polymerization and it is characteristic that the hydrophilic surface contains a hydrophilic graft polymer, which is a copolymer of a macromer having hydrophilic functional groups and a structural unit having a silane coupling group. Further, the invention provides a hydrophilic graft polymer that is copolymer of macromers having hydrophilic functional groups and structural units having silane coupling groups.