Solution Electrospinning of Polyolefins: The Effect of Comonomers in Propylene/α‐Olefin Copolymers
Solution Electrospinning of Polyolefins: The Effect of Comonomers in Propylene/α‐Olefin Copolymers
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聚烯烃溶液静电纺丝：丙烯/α-烯烃共聚物中共聚单体的影响
DOI：
10.1002/mame.200900419
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发表时间：
2010
影响因子：
3.9
通讯作者：
L. Keulder
中科院分区：
文献类型：
--
作者：
A. Reenen;L. Keulder
从溶液中静电纺出两种共聚单体含量和分子量相近的丙烯共聚物。1-辛烯和1-癸烯共聚物产生带状纤维。均相和非均相催化剂体系制备的等规聚丙烯均不能在同一溶剂体系中进行静电纺丝。与均聚物相比，少量（约1mol-%）较高的1-烯烃单体的存在不仅影响聚合物的结晶度，而且似乎也影响其溶解度。降低结晶度和提高溶解度的综合效应表明，少量使用高1-烯烃单体可能是制备聚丙烯基静电纺丝纤维的一条途径。
Two propylene copolymers with similar comonomer content and molecular weight were electrospun from solution. The 1-octene and 1-decene copolymers yielded ribbon-like fibers. Isotactic poly(propylene) prepared by both heterogeneous and homogeneous catalyst systems could not be electrospun from the same solvent system used for the copolymers. The presence of the higher 1-alkene comonomers in small amounts (about 1mol-%) not only affects the crystallinity of the polymer compared to the homopolymer, but appears to influence the solubility as well. The combined effect of lowering crystallinity and increasing solubility indicates that the use of higher 1-alkene comonomers in low amounts could be a route to prepare poly(propylene) based electrospun fibers.