Paper Title:
Synthesis and Characterization of Highly Branched Poly(urethane-imide)s
  Abstract

A series of novel highly branched poly(urethane-imide)s (PUIs) were first successfully prep- ared by a two-step method with toluene-2,4-diisocyanate (TDI), pentaerythritol (PAT) and dianhydrides, including pyromellitic dianhydride (PMDA), 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA) and 4,4'-oxydiphthalic anhydride (ODPA). It was found that the prepolymerization of PAT and TDI at 40 °C was ascertained to be 40 minutes. And the imidization of the prepolymer and PMDA was successfuly carried out after 120 °C for 2 hours. The XRD demonstrated that the obtained highly branched PUIs pre- sented semicrystalline aggregation structure which had clear crystal phase with the d-spacing around 0.39 nm. TGA curves exhibited that these highly branched PUIs had obviously two steps of weight loss attributed to the urethane chain segment and imide chain segment, respectively. The solubility testing indicated that the highly branched PUIs exhibited desirable solubility in various polar aprotic solvents, and were also resistant to dilute acid corrosion.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
1575-1578
DOI
10.4028/www.scientific.net/AMR.79-82.1575
Citation
W. Q. Chen, C. F. Yi, Z. S. Xu, "Synthesis and Characterization of Highly Branched Poly(urethane-imide)s", Advanced Materials Research, Vols. 79-82, pp. 1575-1578, 2009
Online since
August 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dong Hoon Lee, Hye Suk Park, Dong Wan Seo, Tae Whan Hong, Soon Chul Ur, Whan Gi Kim
Abstract:Branched sulfonated poly(ether sulfone-ketone) copolymer was prepared with bisphenol A, 4,4-difluorobenzophenone, sulfonated chlorophenyl...
121
Authors: Tae Whan Hong, Dong Hun Lee, Hae Suck Park, Dong Hwan Suh, Whan Gi Kim
Abstract:Branched sulfonated poly(ether ketone sulfone) copolymer was prepared from1,1,1- tris(4-hydroxyphenyl) ethane, 4,4-difluorophenylsulfone,...
943
Authors: Ji Xing Xie, Ying Song, Shan Zhao
I. New and Advanced Materials
Abstract:Branched copolymer of lactic acid/bicine (N, N-bis (hydroxyethyl) glycin) was prepared directly by melt polycondensation from lactic acid and...
3
Authors: Ping Yu, Yan Wang, Jun Rong Yu, Jing Zhu, Zu Ming Hu
Chapter 1: Composites and Polymers
Abstract:A series of addition-type imide oligomer (degree of polymerization: n=1-9) derived from 2,3,3',4'-diphenyl ether tetracarboxylic acid...
167