专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明授权

US4336356A Production of ozonides from unsaturated polymers 失效
标题翻译：从不饱和聚合物生产臭氧化物
公开(公告)号：US4336356A
公开(公告)日：1982-06-22
申请号：US180753
申请日：1980-08-25
申请人： Shaul M. Aharoni , Dusan C. Prevorsek , George J. Schmitt , Gary A. Harpell , Lester T. C. Lee
发明人： Shaul M. Aharoni , Dusan C. Prevorsek , George J. Schmitt , Gary A. Harpell , Lester T. C. Lee
IPC分类号： C08C19/04 , C08F8/06
CPC分类号： C08C19/04 , C08F8/06 , C08F8/44 , C08G69/26 , C08F2810/20
摘要： Partially unsaturated polymers are dissolved in a two component solvent comprising a first component having a reactivity toward ozone less than carbon-carbon double bonds but more reactive than carbon-carbon single bonds and a second component being inert toward ozone. Introduction of ozone into the solution produces ozonides which are readily cleft into difunctional aliphatic species that can be converted to e.g. carboxy-terminated or multifunctional carboxy substituted aliphatic compounds. These may be used as monomeric species in various polymerization schemes as such, in preparation of polyamides, for example, or may be reduced to aldehydes or alcohols to be used in the preparation of such polymers as polyesters, polyurethanes, poly (Schiff bases), etc. The carboxylated products may also be employed as ionomers, which are useful as surfactants. Monocarboxyl terminated polyethylene having a number average molecular weight of from about 4,000 to 100,000 are provided. Poly(carboxymethyl) substituted polyethylenes, wherein from about 0.05 to 1.3 percent of the hydrogen atom or polyethylene are substituted with carboxymethyl groups, are obtained.
摘要翻译：部分不饱和聚合物溶解在包含对臭氧反应性低于碳 - 碳双键但比碳 - 碳单键反应性更高的第一组分的第二组分和对臭氧呈惰性的第二组分的双组分溶剂中。将臭氧引入溶液中产生臭氧化物，其易于裂解成可以转化为例如二官能的脂族物质。羧基封端或多官能的羧基取代的脂族化合物。这些可以在各种聚合方案中用作单体物质，例如在制备聚酰胺时，或者可以还原成醛或醇，以用于制备聚合物如聚酯，聚氨酯，聚（席夫碱），羧化产物也可以用作离聚物，它们可用作表面活性剂。提供数均分子量为约4,000至100,000的单羧基封端的聚乙烯。得到其中约0.05-1.3％的氢原子或聚乙烯被羧甲基取代的聚（羧甲基）取代的聚乙烯。

IPRDB

热门服务

关于我们

友情链接

联系方式