申请人:ARIZONA BOARD OF REGENTS
公开号:EP0345073A1
公开(公告)日:1989-12-06
Poly[3,3-bis(hydroxymethyloxetane] ("PBHMO") is prepared in high molecular weight (ninh to 5.2) by polymerizing the trimethylsilylether of 3,3-bis (hydroxymethyl)oxetane with i-Bu₃Al-0.7 H₂O cationic catalyst at low temperature, followed by hydrolysis. PBHMO is crystalline, high melting (about 314oC), highly insoluble and useful in the production of films and fibers. Poly[3-methyl-3- (hydroxymethyl)oxetane] ("PMHMO") and poly [3-ethyl-3-(hydroxymethyl)oxetane] ("PEHMO") are also prepared in high molecular weight (ninh up to 3.8) by the same procedures. Copolymers of BHMO, MHMO, and EHMO with each other or containing up to about 50% of other oxetanes, oxiranes and tetrahydrofurans; derivatives and alloys from these polymers and copolymers; and methods of preparing the polymers, copolymers, alloys and derivatives into useful films, fibers and articles is described.
聚[3,3-双(羟甲基)氧杂环丁烷]("PBHMO")是通过 i-Bu₃Al-0.7 H₂O 阳离子催化剂在低温下聚合 3,3-双(羟甲基)氧杂环丁烷的三甲基硅醚,然后进行水解,制备出高分子量(ninh 至 5.2)的聚[3,3-双(羟甲基)氧杂环丁烷]。PBHMO 呈结晶状,熔点高(约 314 摄氏度),极不溶解,可用于生产薄膜和纤维。聚[3-甲基-3-(羟甲基)氧杂环丁烷]("PMHMO")和聚[3-乙基-3-(羟甲基)氧杂环丁烷]("PEHMO")也可通过相同的程序制备出高分子量(ninh 高达 3.8)的聚[3-甲基-3-(羟甲基)氧杂环丁烷]("PMHMO")。此外,还介绍了 BHMO、MHMO 和 EHMO 与其他氧杂环丁烷、环氧乙烷和四氢呋喃的共聚物,以及这些聚合物和共聚物的衍生物和合金,以及将聚合物、共聚物、合金和衍生物制备成有用薄膜、纤维和物品的方法。