Achievement of a Highly Rapid Bond Exchange for Self-Catalyzed Polyester Vitrimers by Incorporating Tertiary Amino Groups on the Network Strands

Abstract Phase behavior in the blend of -SO3H terminated polystyrene (PSS) with poly(n-butyl acrylate-co-N,N-dimethylaminoethyl methacrylate) containing 6.0 mol% N,N-dimethylaminoethyl methacrylate (P1) is investigated by optical microscopy and small-angle X-ray scattering (SAXS). Comparing the miscibility of polystyrene/P1 blend, it is confirmed that the miscibility of the PSS/P1 blend is drastically improved by the hydrogen bonds between -SO3H and tertiary amino group. In addition, two-phase region of the PSS/P1 blend is split into two regions around the stoichiometric composition, in which the molar ratio of -SO3H to tertiary amino group is 1:1 stoichiometry. SAXS result shows that the PSS/P1 blend at stoichiometric composition forms a block copolymer-like aggregate and it takes a disorder state.

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Biomimetic phosphorylcholine strategy to improve the hemocompatibility of pH-responsive micelles containing tertiary amino groups

Colloids and Surfaces B Biointerfaces ◽

10.1016/j.colsurfb.2019.110545 ◽

2019 ◽

Vol 184 ◽

pp. 110545 ◽

Cited By ~ 2

Author(s):

Hu Lin ◽

Quan Wang ◽

Rui Zhong ◽

Zhen Li ◽

Weifeng Zhao ◽

...

Keyword(s):

Ph Responsive ◽

Amino Groups ◽

Tertiary Amino

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ChemInform Abstract: INTRAMOLECULAR GENERAL-BASE CATALYSIS OF SCHIFF-BASE HYDROLYSIS BY TERTIARY AMINO GROUPS

Chemischer Informationsdienst ◽

10.1002/chin.198221085 ◽

1982 ◽

Vol 13 (21) ◽

Author(s):

T. OKUYAMA ◽

H. SHIBUYA ◽

T. FUENO

Keyword(s):

Schiff Base ◽

Base Catalysis ◽

Base Hydrolysis ◽

Amino Groups ◽

General Base ◽

Tertiary Amino

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CO2 absorption characteristics of a piperazine derivative with primary, secondary, and tertiary amino groups

Korean Journal of Chemical Engineering ◽

10.1007/s11814-016-0180-9 ◽

2016 ◽

Vol 33 (11) ◽

pp. 3222-3230 ◽

Cited By ~ 17

Author(s):

Jeong Ho Choi ◽

Young Eun Kim ◽

Sung Chan Nam ◽

Soung Hee Yun ◽

Yeo Il Yoon ◽

...

Keyword(s):

Co2 Absorption ◽

Amino Groups ◽

Piperazine Derivative ◽

Tertiary Amino ◽

Absorption Characteristics

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Surface Grafting Modification of Silk Fibroin by Atom Transfer Radical Polymerization

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.373-374.629 ◽

2008 ◽

Vol 373-374 ◽

pp. 629-632 ◽

Cited By ~ 7

Author(s):

Tie Ling Xing ◽

Hai Jiang Wang ◽

Zhan Xiong Li ◽

Guo Qiang Chen

Keyword(s):

Silk Fibroin ◽

Gel Permeation Chromatography ◽

Catalyst System ◽

Hydroxyl Groups ◽

Amino Groups ◽

Grafting Modification ◽

Antibacterial Surface ◽

Ft Ir ◽

Tertiary Amino

In this work, surface modification of silk fibroin was conducted by grafting dimethylaminoethyl methacrylate (DMAEMA) via ATRP to produce well controlled grafting silk. First, the amino groups and hydroxyl groups on the side chains of the silk fibroin reacted with 2-bromoisobutyryl bromide (BriB-Br) to obtain efficient initiator for ATRP. Subsequently, the functional silk fibroin was used as macroinitiator of DMAEMA in 1,2-dichlorobenzene in conjunction with CuBr/N,N,N',N",N" -pentamethyldiethylenetriamine (PMDETA) as a catalyst system. FT-IR characterization of the modified silk substrate showed a peak corresponding to DMAEMA indicating that the polymer had been formed on the silk surface. Following the polymerization, the tertiary amino groups on the grafted silk fibroin were quaternized to produce a large concentration of quaternary ammonium groups, which endowed the silk substrate with potential antibacterial surface. The graft chains were cleaved by acid hydrolysis and analyzed by gel permeation chromatography (GPC). The GPC results indicated that the graft layer were well-controlled.

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