共 57 条
Facile Postpolymerization End-Modification of RAFT Polymers
被引:78
作者:
Spruell, Jason M.
[1
]
Levy, Benjamin A.
[2
]
Sutherland, Alexander
[2
]
Dichtel, William R.
[1
]
Cheng, Joy Y.
[2
]
Stoddart, J. Fraser
[1
]
Nelson, Alshakim
[2
]
机构:
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
[2] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA
基金:
美国国家科学基金会;
关键词:
block copolymer;
phase separation;
postpolymerization modification;
reduction/conjugation;
reversible addition fragmentation chain transfer (RAFT);
CHAIN-TRANSFER POLYMERIZATION;
LIVING RADICAL POLYMERIZATION;
FUNCTIONALIZED BLOCK-COPOLYMERS;
CLICK CHEMISTRY;
DIBLOCK COPOLYMERS;
THIN-FILMS;
SURFACE-CHEMISTRY;
NANOPARTICLES;
POLYSTYRENE;
EFFICIENT;
D O I:
10.1002/pola.23138
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
One-pot methods for the end-group postpolymerization modification of reversible addition fragmentation chain transfer (RAFT) derived polymers were investigated. Dithioester-terminated polymers were transformed into omega-functionalized polymers through conjugate addition of a variety of acrylates with an intermediate thiol. These methods provide a versatile means of introducing a variety of functionalities onto the polymer terminus, while simultaneously removing the residual dithiobenzoate group. A series of functionalized polymetbylmethaerylate-b-polystyrene (PMMA-b-PS) polymers were synthesized utilizing the developed methods to probe the effect of charged end groups on diblock copolymer phase separation in thin films. (C) 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 346-356, 2009
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页码:346 / 356
页数:11
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