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THERMOSETTING COMPOSITIONS CONTAINING HYDROXYL-FUNCTIONAL POLYMERS PREPARED USING ATOM TRANSFER RADICAL POLYMERIZATION
THERMOSETTING COMPOSITIONS CONTAINING HYDROXYL-FUNCTIONAL POLYMERS PREPARED USING ATOM TRANSFER RADICAL POLYMERIZATION
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机译:原子转移自由基聚合制备的含羟基官能聚合物的热固性组合物
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摘要
A thermosetting composition is provided comprising:(a) a crosslinking agent having at least two functional groups that are reactive with hydroxyl groups; and(b) a non-gelled, hydroxyl functional polymer prepared by atom transfer radical polymerization, in the presence of an initiator having at least one radically transferable group. The polymer contains at least one of the following polymer chain structures:orwherein M is a residue, that is free of hydroxyl functionality, of at least one ethylenically unsaturated radically polymerizable monomer; G is a residue, that has hydroxyl functionality, of at least one ethylenically unsaturated radically polymerizable monomer; p and q represent average numbers of residues occurring in a block of residues in each polymer chain structure; and p, q, and x are each independently selected for each structure such that the hydroxyl functional polymer has a number average molecular weight of at least 250.
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