Synthesis and oxygen permeation of novel polymers of phenylacetylenes having two hydroxyl groups via different lengths of spacers
作者:Yu Zang、Toshiki Aoki、Masahiro Teraguchi、Takashi Kaneko、Liqun Ma、Hongge Jia
DOI:10.1016/j.polymer.2014.11.042
日期:2015.1
Three novel phenylacetylenes having two hydroxyl groups via different kinds of spacers between the two hydroxyl groups and benzyl group were synthesized and polymerized. Two of the resulting polymers having oxyalkylene spacers between the hydroxyl group and benzyl group had good membrane forming ability, relatively high oxygen permselectivity and high oxygen permeability. By introducing the oxyalkylene
合成并聚合了通过在两个羟基和苄基之间的不同种类的间隔基而具有两个羟基的三个新颖的苯基乙炔。所得的在羟基和苄基之间具有氧化烯间隔基的两种聚合物具有良好的成膜能力,较高的透氧选择性和较高的透氧性。通过引入氧化烯间隔基,提高了膜形成能力和氧渗透选择性。氧选择性(PØ2个/Pñ2个=2.67)具有最长间隔物的聚合物膜的“膜”比没有任何间隔物的聚合物的(2.19)高。可能是因为当顺式-顺式构象变为顺式-反式构象时,柱状含量和缺陷减少了。此外,通过降低无任何间隔基的聚合物的膜的柱状含量(可以通过制膜条件控制),可以有效提高成膜能力和透氧选择性(从2.19降至2.61),而不会降低透氧率。