Tuning nanophase separation behavior in segmented polyhydroxyurethanes via judicious choice of soft segment

Goliath Beniah; Brice E. Uno; Tian Lan; William Heath; Karl A. Scheidt; John M. Torkelson

Tuning nanophase separation behavior in segmented polyhydroxyurethanes via judicious choice of soft segment

Goliath Beniah, Brice E. Uno, Tian Lan, William Heath, Karl A. Scheidt, John M. Torkelson

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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 (T_g) below room temperature while the hard blocks have a T_g 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

ASJC Scopus subject areas

Mechanics of Materials
Materials Science(all)

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@inproceedings{d05eee23a22746208be84538986925e0,

title = "Tuning nanophase separation behavior in segmented polyhydroxyurethanes via judicious choice of soft segment",

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 ",

author = "Goliath Beniah and Uno, {Brice E.} and Tian Lan and William Heath and Scheidt, {Karl A.} and Torkelson, {John M.}",

year = "2016",

month = jan,

day = "1",

language = "English (US)",

volume = "2",

pages = "605--606",

booktitle = "Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting",

publisher = "AIChE",

note = "Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting ; Conference date: 13-11-2016 Through 18-11-2016",

}

Beniah, G, Uno, BE, Lan, T, Heath, W, Scheidt, KA & Torkelson, JM 2016, Tuning nanophase separation behavior in segmented polyhydroxyurethanes via judicious choice of soft segment. in Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting. vol. 2, AIChE, pp. 605-606, Materials Engineering and Sciences Division 2016 - Core Programming Area at the 2016 AIChE Annual Meeting, San Francisco, United States, 11/13/16.

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.

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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

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