Abstract
Segmented polyurethanes (PUs) are composed of alternating sequences of soft and hard blocks. Depending on the composition of these blocks, they can exhibit properties ranging from soft elastomers to hard plastics while retaining the processing characteristics of thermoplastics. The soft blocks are typically long, flexible molecules with a glass transition temperature (Tg) below room temperature while the hard blocks have a Tg above room temperature and are composed of diisocyanate condensed with small molecule diol. Segmented PUs typically exhibit excellent nanophase separation due to the incompatibility between the soft and hard domains as well as the hydrogen bonding between polar urethane units in the hard domain. Varying degrees of nanophase separation are expected depending upon the structures of diisocyanates, soft segments, and chain extenders as well as overall material compositions.1,2
| Original language | English (US) |
|---|---|
| Title of host publication | Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting |
| Publisher | AIChE |
| Pages | 605-606 |
| Number of pages | 2 |
| Volume | 2 |
| ISBN (Electronic) | 9781510834408 |
| State | Published - Jan 1 2016 |
| Event | Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting - San Francisco, United States Duration: Nov 13 2016 → Nov 18 2016 |
Other
| Other | Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting |
|---|---|
| Country | United States |
| City | San Francisco |
| Period | 11/13/16 → 11/18/16 |
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ASJC Scopus subject areas
- Mechanics of Materials
- Materials Science(all)
Cite this
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Tuning nanophase separation behavior in segmented polyhydroxyurethanes via judicious choice of soft segment. / Beniah, Goliath; Uno, Brice E.; Lan, Tian; Heath, William; Scheidt, Karl A.; Torkelson, John M.
Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting. Vol. 2 AIChE, 2016. p. 605-606.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Tuning nanophase separation behavior in segmented polyhydroxyurethanes via judicious choice of soft segment
AU - Beniah, Goliath
AU - Uno, Brice E.
AU - Lan, Tian
AU - Heath, William
AU - Scheidt, Karl A.
AU - Torkelson, John M.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Segmented polyurethanes (PUs) are composed of alternating sequences of soft and hard blocks. Depending on the composition of these blocks, they can exhibit properties ranging from soft elastomers to hard plastics while retaining the processing characteristics of thermoplastics. The soft blocks are typically long, flexible molecules with a glass transition temperature (Tg) below room temperature while the hard blocks have a Tg above room temperature and are composed of diisocyanate condensed with small molecule diol. Segmented PUs typically exhibit excellent nanophase separation due to the incompatibility between the soft and hard domains as well as the hydrogen bonding between polar urethane units in the hard domain. Varying degrees of nanophase separation are expected depending upon the structures of diisocyanates, soft segments, and chain extenders as well as overall material compositions.1,2
AB - Segmented polyurethanes (PUs) are composed of alternating sequences of soft and hard blocks. Depending on the composition of these blocks, they can exhibit properties ranging from soft elastomers to hard plastics while retaining the processing characteristics of thermoplastics. The soft blocks are typically long, flexible molecules with a glass transition temperature (Tg) below room temperature while the hard blocks have a Tg above room temperature and are composed of diisocyanate condensed with small molecule diol. Segmented PUs typically exhibit excellent nanophase separation due to the incompatibility between the soft and hard domains as well as the hydrogen bonding between polar urethane units in the hard domain. Varying degrees of nanophase separation are expected depending upon the structures of diisocyanates, soft segments, and chain extenders as well as overall material compositions.1,2
UR - http://www.scopus.com/inward/record.url?scp=85019079787&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85019079787&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85019079787
VL - 2
SP - 605
EP - 606
BT - Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting
PB - AIChE
ER -