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Title: Colloidal Random Terpolymers: Controlling Reactivity Ratios of Colloidal Comonomers via Metal Tipping

Journal Article · · ACS Macro Letters
 [1];  [1];  [1];  [2];  [3]
  1. Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
  2. Department of Chemical and Biological Engineering, Program for Chemical Convergence for Energy and Environment, and the Center for Intelligent Hybrids, Seoul National University, Seoul 151-744, Korea
  3. Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, United States, Department of Chemical and Biological Engineering, Program for Chemical Convergence for Energy and Environment, and the Center for Intelligent Hybrids, Seoul National University, Seoul 151-744, Korea
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We report on a versatile synthetic m-shell nanoparticles (NPs) in the backbone, along with semiconductor CdSe@CdS nanorod (NR), or tetrapod (TP) side chain groups. A seven-step colloidal total synthesis enabled the synthesis of well-defined colloidal comonomers composed of a dipolar Au@CoNP attached to a single CdSe@CdS NR, or TP, where magnetic dipolar associations between Au@CoNP units promoted the formation of colloidal co- or terpolymers. The key step in this synthesis was the ability to photodeposit a single AuNP tip onto CdSe@CdS NR or TP that enables selective seeding of a dipolar CoNP onto the AuNP seed. In conclusion, we show that the variation of the AuNP size directly controlled the size and dipolar character of the CoNP tip, where the size modulation of the Au and Au@CoNP tips is analogous to control of comonomer reactivity ratios in classical copolymerization processes.

Research Organization:
Univ. of Arizona, Tucson, AZ (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); National Research Foundation of Korea (NRF)
Contributing Organization:
Seoul National Univ. (Korea, Republic of)
Grant/Contract Number:
FG03-02ER15753; FG02-05ER15753; DMR-1307192; 2010-0018290
OSTI ID:
1273674
Alternate ID(s):
OSTI ID: 1315213
Journal Information:
ACS Macro Letters, Journal Name: ACS Macro Letters Vol. 5 Journal Issue: 8; ISSN 2161-1653
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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