会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 59. 发明授权
    • Atom transfer radical polymerization in microemulsion and true emulsion polymerization processes
    • 原子转移自由基聚合在微乳液和真乳液聚合过程中
    • US08273823B2
    • 2012-09-25
    • US11990836
    • 2006-08-23
    • Krzysztof MatyjaszewskiKe Min
    • Krzysztof MatyjaszewskiKe Min
    • C08F2/32C08F297/00C08F2/22C08F4/10
    • C08F4/40C08F2/22C08F212/08C08F293/00C08F293/005C08F2438/01C08F220/12
    • The invention is directed to a microemulsion polymerization comprising adding a polymerization catalyst precursor, such as a transition metal complex in the higher of two accessible oxidation states, an ATRP initiator, and an organic solvent to an aqueous solution to form an emulsion. Radically polymerizable monomers and a reducing agent may then be added to the emulsion. The reducing agent converts the catalyst precursor to a catalyst for polymerization of the first monomer from the initiator. In certain embodiments the organic solvent may comprise radically polymerizable monomers. The aqueous solution may comprise a surfactant. Further embodiments are directed to an ah initio polymerization process comprising adding a polymerization catalyst precursor; an ATRP initiator, and an organic solvent to an aqueous solution to form an emulsion, wherein the organic solvent comprises second radically polymerizable monomers, adding a reducing agent to convert the catalyst precursor to a catalyst for polymerization of the first radically polymerizable monomer from the initiator; and adding first radically polymerizable monomers to the emulsion.
    • 本发明涉及一种微乳液聚合方法,其中包括将聚合催化剂前体,例如两种可接近的氧化态中较高的过渡金属络合物,ATRP引发剂和有机溶剂加入到水溶液中以形成乳液。 然后将可自由基聚合的单体和还原剂加入到乳液中。 还原剂将催化剂前体转化为第一单体从引发剂聚合的催化剂。 在某些实施方案中,有机溶剂可以包含可自由基聚合的单体。 水溶液可以包含表面活性剂。 进一步的实施方案涉及一种开始聚合方法,包括加入聚合催化剂前体; ATRP引发剂和有机溶剂加入到水溶液中以形成乳液,其中有机溶剂包括第二自由基聚合单体,加入还原剂以将催化剂前体转化为用于从引发剂聚合第一可自由基聚合单体的催化剂 ; 并将第一可自由基聚合的单体加入到乳液中。