发明名称 Process for making a polyzwitterion or polyzwitterionic acid
摘要 A zwitterionic monomer and corresponding cyclopolymerized polyzwitterion (±) (PZ) (i.e. poly(Z-alt-SO2). Phosophonate ester hydroloysis in PZ gave a pH-responsive polyzwitterionic acid (±) (PZA). The PZA under pH-induced transformation was converted into polyzwitterion/anion (±−) (PZAN) and polyzwitterion/dianion (±=) (PZDAN).
申请公布号 US9617388(B2) 申请公布日期 2017.04.11
申请号 US201615282074 申请日期 2016.09.30
申请人 King Fahd University of Petroleum and Minerals;King Abdulaziz City for Science and Technology 发明人 Ali Shaikh Asrof;Haladu Shamsuddeen Abdullahi
分类号 C08F226/04;C08G75/22;B01D65/02;C08G75/20;C08G75/205;C08F26/06;C08F226/06;C08F26/04 主分类号 C08F226/04
代理机构 Oblon, McClelland, Maier & Neustadt, L.L.P. 代理人 Oblon, McClelland, Maier & Neustadt, L.L.P.
主权项 1. A process for making a polyzwitterion or polyzwitterionic acid having the following formula: where n is an integer of 10 or greater, the process comprising: copolymerizing a monomer of formula (I) with SO2 in the presence of a polymerizing agent, wherein R is a C1 to C6 alkyl group or a C6-C12 aryl group or an H group.
地址 Dhahran SA