Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
3860646
Reference Type
Journal Article
Title
SYNTHESIS OF POLYESTERS-PERFLUOROPOLYETHERS BLOCK COPOLYMERS .3. USE OF VARIOUS TELECHELIC PERFLUOROPOLYETHERS
Author(s)
Pilati, F; Toselli, M; Vallieri, A; Tonelli, C
Year
1992
Is Peer Reviewed?
1
Journal
Polymer Bulletin
ISSN:
0170-0839
EISSN:
1436-2449
Volume
28
Issue
2
Page Numbers
151-157
DOI
10.1007/BF00299650
Web of Science Id
WOS:A1992HN96000006
Abstract
Multiblock -(A-B)n- copolymers containing polyester segments together with perfluoropolyether (PFPE) segments have been prepared by polymerizing dimethyl terephthalate (DMT), or an equimolar mixture of DMT and dimethyl isophthalate (DMI), with ethylene glycol (EG) in the presence of different telechelic perfluoropolyethers in various amounts (5-30 wt%), using Ti(OBu)4 as the catalyst. Fomblin ZDEAL (a -COOCH3 terminated PFPE), Fomblin ZDOL (a PFPE having -CH2OH terminal groups), and Fomblin ZDOLTX (a PFPE having -CH2O(CH2CH2O)yH terminal groups) were used as telechelic PFPEs. Fomblin ZDOLTX gave the best results: the highest yield in block copolymer (less sensitive to hydrolysis with respect to block copolymers prepared from the other PFPEs), a longer average length of polyester segments, and a relatively low fraction of PFPE lost by distillation during polymerization.
Tags
PFAS
•
Expanded PFAS SEM (formerly PFAS 430)
Perfluoropentanesulfonate
•
^Per- and Polyfluoroalkyl Substances (PFAS)
PFPeS (2706-91-4)
Literature Search
WOS
•
PFPeS
Literature Search
WOS
Screening Results
Excluded/Not on Topic
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity