IPTS-1456 - Spallation Neutron Source

Form Style Proposal Report
Integrated Proposal Tracking System
Proposal Detail
Proposal ID: IPTS-1456
Date
Submitted:
29-JUL-08
Principal
Investigator:
W Streets
Institute: ORNL SNS
Other Institute -
Proposal Type: General User
Status: Proposal Approved
Total Days
Requested
3
The PEO-PPO-PEO triblock copolymers have important applications in industry and medicine. Because of the differing solubilities of PEO and PPO in water, these
copolymers exhibit a rich phase behavior that is sensitive to polymer concentration, solvent ionic strength, temperature, and pressure. These phase changes occur by the
self-assembly of the polymer chains into structures with characteristic length scales most appropriately measured in nanometers. Thus, small-angle neutron scattering
Abstract: (SANS) is a probe uniquely well-suited to studying this phase behavior. In these experiments we will probe the effects of concentration and ionic strength on block
copolymer self-assembly using solutions of 1,2, and 5 weight% Pluronics F108 triblock copolymer in D20 with varying concentrations of salt added, one series in which the
anion is the same and the cation is varied, and another where the reverse is true. The size morphology, and aggregation number of the micellar structures will be
extracted through nonlinear least-squares fitting of the scattering data to model functions.
Title: NX School: Micellar Morphologies in Self-Associated Triblock Copolymer Solutions: Effects of Concentration
Proprietary
Data:
No
Classified
Data:
No
Student
Thesis:
Biologically
No
Hazardous
Material
No
Animal Matter: No
Safety Hazard: No
Related
Proposal(S):
IPTS-1452 thru IPTS-1460
Last Updated: 12-SEP-08
Facilities
Statement of Research
Facility Operational Cycle Run Cycle Cycle Begin Dte Cycle End Dte Days Onsite
High Flux Isotope Reactor NScD 2008-B HFIR 2008-B 01-SEP-08 28-FEB-09 3
Instruments
General-Purpose SANS 1 N
Experiment Team Members
Allen Ekkebus ekkebusae@ornl.gov 865-241-5644 Editor
Bryan Chakoumakos chakoumakobc@ornl.gov 865-574-5235 Editor
Ken Littrell littrellkc@ornl.gov 865-574-4535 PI
W Streets streets@ornl.gov 865-574-6612 Editor
Juan Hinestrosa jhinest@clemson.edu Viewer
Dilru Ratnawera dratnaw@clemson.edu 8646567803 Viewer
Shenyan Huang shuang4@utk.edu 8653230722 Viewer
Amanda McDermott a.g.mcdermott@gmail.com Viewer
Christopher Grabowski aq9410@wayne.edu Viewer
Dian Chen dchen@mail.pse.umass.edu Viewer
Evan Small esmall4@uic.edu Viewer
Ian Elliott igelliott@ucedavis.edu Viewer
Juan-Jose Lietor-Santos jjlietors@gatech.edu Viewer
Qu Jin qjin@purdue.edu Viewer
Ricky Whelchel gtg3592w@mail.gatech.edu Viewer
San-Wen Chen schen@physics.ucsd.edu Viewer
Shibing Wang shibing@stanford.edu Viewer
Thomas Grant tdgrant@buffalo.edu Viewer
Xin Li lix12@rpil.edu Viewer
Yeling Dai ydai@physics.ucsd.edu Viewer
Experiment Samples
Subject Areas
Dynamics -
Structural Determination -
Funding Source
DOE, Office of Basic Energy Sciences -
Research Areas
Chemical Physics -
Page 1 of 2
Sample Number: 4381
Sample Name: PEO-PPO-PEO triblock copolymers
Sample Description:
Solutions of 1,2, and 5 weight% Pluronics F108 triblock copolymer in D20 with varying concentrations of salt added, one series in which the anion is the same
and the cation is varied, and another where the reverse is true.
Sample Formula: PEO-PPO-PEO triblock copolymers
Sample Length: cm
Sample Width: cm
Sample Height: cm
Sample Mass: cg
Total Number Required: -
User Supplied Equipment: -
Local Needs: -
Sample Hazards: None
https://snsapp1.sns.ornl.gov/pls/xprod/f?p=100:52:3658567308394647::NO::P52_PRPSL_ID:1...
9/17/2008

Form Style Proposal Report
Sample Environment: -
Sample Environment
Conditions
-
Sample State: Liquid
Sample Descriptor: Polymer
Dates Unavailable to Attend
no data found
Feasibility Review
Feasibility Status
Recommended Number of Days
Comments
Proposal Activity Log
nmlkj Needs Clarification
nmlkj Outside Normal Workscope (Fail)
nmlkj Within Normal Workscope
0 of 3800
Date Activity Additional Information
16-SEP-2008
17:26:11
15-SEP-2008
11:45:48
15-SEP-2008
11:44:43
12-SEP-2008
09:32:32
29-JUL-2008
14:51:30
29-JUL-2008
14:40:45
29-JUL-2008
14:40:45
29-JUL-2008
14:40:45
29-JUL-2008
14:40:45
29-JUL-2008
14:40:45
29-JUL-2008
14:40:45
29-JUL-2008
14:40:45
29-JUL-2008
14:40:44
29-JUL-2008
14:34:40
Clarification History
no data found
Science Review Details
no data found
Approved Proposal Team Member
Added
Approved Proposal Team Member
Added
Approved Proposal Team Member
Added
Dilru Ratnawera added as a team member with a role of Viewer
Shenyan Huang added as a team member with a role of Viewer
Juan Hinestrosa added as a team member with a role of Viewer
ESH Review ESH Review Performed by Lisa Fagan. Result=ACCEPTABLE Comments=
Propsal Status Change Proposal Status changed from INITIAL-SUBMISSION to APPROVED by W Streets.
Proposal Initially Submitted for
Review
Proposal Submitted.
Submit Review
Proposal collaborator email Subject: IPTS-1456 Submitted Successfully for Operational Cycle NScD 2008-B Recipients: ;streets@ornl.gov;ekkebusae@ornl.gov
ESH Admin email
Recipients: ORNL Neutron Sciences User Office faganla@ornl.gov,evansiw@ornl.gov,schnellca@ornl.gov,streets@ornl.gov Subject: IPTS-1456 Submitted
for NScD 2008-B: Early Safety Review
Spokesman email Recipients: ORNL Neutron Sciences User Office iupo@ornl.gov Subject: IPTS-1456 proposal requests HFIR for Operational Cycle NScD 2008-B
User Office email Recipients: ORNL Neutron Sciences User Office streets@ornl.gov Subject: IPTS-1456 Submitted Successfully for Operational Cycle NScD 2008-B
Initial Submission email Recipients: ORNL Neutron Sciences User Office ipts@ornl.gov Subject: IPTS-1456 Requests Facilities HFIR for Operational Cycle NScD 2008-B
Feasibility Review email
Recipients: ORNL Neutron Sciences User Office streets@ornl.gov,smithgs1@ornl.gov,melnichenkoy@ornl.gov,littrellkc@ornl.gov,atchleykm@ornl.gov
Subject: IPTS-1456 Submitted for NScD 2008-B: Feasibility Review
Propsal Status Change Proposal Status changed from PRE-SUBMISSION to INITIAL-SUBMISSION by W Streets.
Proposal Initially Created as a
Copy of an Existing Proposal
Proposal Created as a Copy of Proposal IPTS-1452.
CNMS Home Page | HFIR Home Page | ORNL Home Page | SNS Home Page
https://snsapp1.sns.ornl.gov/pls/xprod/f?p=100:52:3658567308394647::NO::P52_PRPSL_ID:1...
Page 2 of 2
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9/17/2008

Y:\NX Neutron School_Sep2008\General Purpose SANS CG-2 IPTS-1456.docx IPTS-1456
General Purpose SANS:
Micellar Morphologies in Self-Associated Triblock Copolymer Solutions: Effects of
Concentration (Ken Littrell)
The PEO-PPO-PEO triblock copolymers have important applications in industry and medicine.
Because of the differing solubilities of PEO and PPO in water, these copolymers exhibit a rich
phase behavior that is sensitive to polymer concentration, solvent ionic strength, temperature,
and pressure. These phase changes occur by the self-assembly of the polymer chains into
structures with characteristic length scales most appropriately measured in nanometers. Thus,
small-angle neutron scattering (SANS) is a probe uniquely well-suited to studying this phase
behavior. In these experiments we will probe the effects of concentration and ionic strength on
block copolymer self-assembly using solutions of 1,2, and 5 weight% Pluronics F108 triblock
copolymer in D20 with varying concentrations of salt added, one series in which the anion is the
same and the cation is varied, and another where the reverse is true. The size morphology, and
aggregation number of the micellar structures will be extracted through nonlinear least-squares
fitting of the scattering data to model functions.