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

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.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [3]
  1. Univ. of Arizona, Tucson, AZ (United States). Dept. of Chemistry and Biochemistry
  2. Seoul National Univ. (Korea, Republic of). Dept. of Chemical and Biological Engineering. Program for Chemical Convergence for Energy and Environment. Center for Intelligent Hybrids
  3. Univ. of Arizona, Tucson, AZ (United States). Dept. of Chemistry and Biochemistry; Seoul National Univ. (Korea, Republic of). Dept. of Chemical and Biological Engineering. Program for Chemical Convergence for Energy and Environment. Center for Intelligent Hybrids
Publication Date:
OSTI Identifier:
1273674
Grant/Contract Number:
FG02-05ER15753; DMR-1307192; 2010-0018290; FG03-02ER15753
Type:
Published Article
Journal Name:
ACS Macro Letters
Additional Journal Information:
Journal Volume: 5; Journal Issue: 8; Journal ID: ISSN 2161-1653
Publisher:
American Chemical Society
Research Org:
Univ. of Arizona, Tucson, AZ (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); National Research Foundation of Korea (NRF)
Contributing Orgs:
Seoul National Univ. (Korea, Republic of)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE