Synthesis and characterization of crosslinked hyperbranched polyglycidol hydrogel films
Synthesis and characterization of crosslinked hyperbranched polyglycidol hydrogel films
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DOI：
10.1080/10601320600599603
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发表时间：
2006-05-01
影响因子：
2.5
通讯作者：
Yoshinaga, Koji
中科院分区：
文献类型：
--
作者：
Kim, Bong Soo;Im, Ji Sun;Yoshinaga, Koji
采用具有多个引发位点的阴离子引发剂，通过缩水甘油的阴离子开环聚合，合成了超支化聚缩水甘油（PGLD）。用核磁共振氢谱和碳谱对聚合物进行了表征，证实了聚合物的结构为线型、超支化和树枝状。通过凝胶渗透色谱法（GPC）测定分子量特性。为了研究广泛应用的可能性，使用各种交联剂制备PGLD水凝胶膜，戊二醛和一些二元羧酸，它们的物理性能，如溶胀行为和拉伸（或杨氏）模量进行了测量和比较。
Hyperbranched polyglycidol (PGLD) was synthesized via anionic ring-opening polymerization of glycidol using a special anionic initiator with multiple initiation sites. The resultant polymers were characterized by H-1 and C-13-NMR spectra for confirming their structures, which consisted of linear, hyperbranched and dendritic structures. Molecular weight characteristics were determined by means of the gel permeation chromatography (GPC). With the intention of investigating the possibility of broad applications, PGLD hydrogel films were prepared using various crosslinking agents, i.e., glutaraldehyde and some dicarboxylic acids, and their physical properties such as swelling behavior and tensile ( or Young's) modulus were measured and compared.