Entropy-Driven Ring-Opening Disulfide Metathesis Polymerization for the Synthesis of Functional Poly(disulfide)s

被引：20

作者：

Behrendt, Felix N. ^{[1
]}

Schlaad, Helmut ^{[1
]}

机构：

[1] Univ Potsdam, Inst Chem, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2018年 / 39卷 / 06期

关键词：

disulfide; macrocycles; metathesis; ring-opening polymerization; SURFACE-INITIATED POLYMERIZATION; CELLULAR UPTAKE; CHEMISTRY; SOLVENTS; AMINE)S; DITHIOL;

D O I：

10.1002/marc.201700735

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Metal-free entropy-driven disulfide metathesis polymerization of unsaturated L-cystine based macrocycles produces high-molar-mass heterofunctional poly(disulfide)s, i.e., poly(ester-disulfide-alkene) and poly(amide-disulfide-alkene); M-w(app) = 44-60 kDa, (sic) > 1.7. The polymerization is fast and reaches equilibrium within 1-5 minutes (monomer conversion 70-90%) in polar aprotic solvents such as N,N-dimethylacetamide, dimethylsulfoxide, or y-valerolactone. Thiol-terminated polymers are stable in bulk or when dissolved in weakly polar solvents, but rapidly depolymerize in dilute polar solution.

引用

页数：4

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