Synthesis of polymers in aqueous solutions: Esterification reaction of poly(methacrylic acid) with alkyl halides using DBU in aqueous solutions

1996 ◽  
Vol 34 (17) ◽  
pp. 3531-3537 ◽  
Author(s):  
Tadatomi Nishikubo ◽  
Atsushi Kameyama ◽  
Youji Yamada ◽  
Yuichi Yoshida
Keyword(s):  
Aqueous Solutions ◽  
Methacrylic Acid ◽  
Alkyl Halides ◽  
Esterification Reaction

Study of polymer chain dynamics in solution by time-resolved spectrofluorometry

1989 ◽  
Vol 54 (11) ◽  
pp. 3011-3024 ◽  
Author(s):  
Vlastimil Fidler ◽  
Stefan Vajda ◽  
Zuzana Limpouchová ◽  
Jiří Dvořák ◽  
Karel Procházka ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Conformational Changes ◽  
Methacrylic Acid ◽  
Correlation Time ◽  
General Level ◽  
Polymeric Chain ◽  
Relative Molecular Mass ◽  
Chain Dynamics ◽  
Time Resolved ◽  
Covalently Bonded

The methodology of polarization time-resolved fluorometry and interpretation of its results are outlined at a general level, and the measurement on and use of facilities of the Edinburgh Instruments Model 299T apparatus are discussed in detail. The dynamics of conformational changes in chains of poly(methacrylic acid) containing covalently bonded dansyl labels are studied in aqueous solutions at various pH. It is shown that at pH > 6, the shorter effective rational correlation time τr < 2 ns corresponds to the rotation of the free dansyl label about bonds by which it is attached to the polymeric chain; at pH < 4 the longer effective rational correlation time τr = 20-26 ns corresponds to the rotation of the compact spherical formation constituted by a part of the collapsed polymeric chain in which the label is fixed and whose relative molecular mass is approx. 15 000-20 000.

Structural Organization of Interpolymer Complexes Formed by Poly(N-vinylamides) and Poly(methacrylic acid) Chains Regularly Grafted to Polyimide in Aqueous Solutions

2018 ◽  
Vol 60 (S1) ◽  
pp. 172-178 ◽  
Author(s):  
T. N. Nekrasova ◽  
V. D. Pautov ◽  
T. D. Anan’eva ◽  
T. K. Meleshko ◽  
I. V. Ivanov ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Methacrylic Acid ◽  
Structural Organization ◽  
Interpolymer Complexes

Photografting of methacrylic acid onto HDPE initiated by acetaldehyde in aqueous solutions

2010 ◽  
Vol 119 (2) ◽  
pp. 629-635 ◽  
Author(s):  
Anqi Song ◽  
Di Zhao ◽  
Rong Rong ◽  
Lin Zhang ◽  
Huiliang Wang
Keyword(s):  
Aqueous Solutions ◽  
Methacrylic Acid

scholarly journals Cyclodextrin modified filter paper for removal of cationic dyes/Cu ions from aqueous solutions

2018 ◽  
Vol 78 (12) ◽  
pp. 2553-2563 ◽  
Author(s):  
Yaoyue Li ◽  
Yanbo Zhou ◽  
Yi Zhou ◽  
Juying Lei ◽  
Shengyan Pu
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Filter Paper ◽  
Textile Industry ◽  
High Efficiency ◽  
National Standard ◽  
Esterification Reaction ◽  
Dynamic Adsorption ◽  
Pseudo Second Order ◽  
Cu Ions

Abstract A filter paper was functionalized with β-cyclodextrin and citric acid via esterification reaction for the removal of dyes and Cu ions from aqueous solutions. The adsorption capacity and removal performance of the modified filter paper (MFP) was investigated using static and dynamic adsorption experiments. The static adsorption data fit well the Langmuir and pseudo-second-order models, and the adsorption capacity of Methylene Blue (MB), Brilliant Green (BG), Rhodamine-B (RB) and Cu(II) over the MFP were 124.6 mg/g, 130.4 mg/g, 99.7 mg/g and 39.1 mg/g, respectively, which are much higher than the unmodified filter paper (below 2 mg/g). Even better, the decolorization performance and Cu(II) removal of MFP are remarkable in dynamic adsorption. The effluent can reach the National Standard for dyeing and finishing of textile industry of China after three cycles in a continuous filtration-adsorption system. This method provides a new pathway to achieve high efficiency removal of dyes and metal ions from wastewater.

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