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Photocrosslinkable polymer based on 4-(3-(2,4-dichlorophenyl)-3-oxoprop-1-enyl) phenylacrylate: synthesis, reactivity ratio, and crosslinking studies Cover

Photocrosslinkable polymer based on 4-(3-(2,4-dichlorophenyl)-3-oxoprop-1-enyl) phenylacrylate: synthesis, reactivity ratio, and crosslinking studies

Materials Science-Poland
Volume 34 (2016): Issue 4 (December 2016)
By: ,   and    
Open Access
|Dec 2016
Figures & tables

Figures & Tables

Synthesis of DCP and poly(DCP).

Synthesis of poly(DCP-co-HEA) and poly(DCP-co-S).

FT-IR spectra of DHA:▄; DCP: ♦ and poly(DCP): o.

FT-IR spectra of poly(DCP-co-HEA): o and poly(DCP-co-S): ♦.

1H NMR spectrum of (a)DHP,(b)DCP.

1H NMR spectra of (a) poly(DCP-co-S); (b) poly(DCP-co-HEA).

Table 1

Molar fraction data for poly(DCP-co-HEA).

Feed composition M1Conversion [%]Integral valueC = Im/IaCopolymer composition m1
ImIa
0.157.63.349.630.34680.24
0.3010.30.881.130.66160.36
0.5014.21.731.641.05480.59
0.708.72.319.770.23640.82
0.8511.81.647.290.22490.91

[Monomer 1 + Monomer 2] = 0.5 moles/litre Temperature: 70±1 °C Initiator: BPO [1 % (w/w) of monomers 1 and 2] Solvent: EMK

Table 2

Molar fraction data for poly(DCP-co-S.)

Feed composition M1Conversion [%]Integral valueC = Ia/IeCopolymer composition m1
IaIe
0.1511.59.982.254.440.27
0.3015.65.350.945.690.47
0.5013.26.141.026.820.57
0.7017.21.310.1210.910.75
0.859.34.130.2119.660.86

[monomer 1 + monomer 2] = 0.5 mol/L temperature: 70±1 °C initiator: BPO [1%(w/w) of monomers 1 and 2] solvent: EMK

Molar fraction curve of poly(DCP-co-HEA).

Molar fraction curve of poly(DCP-co-S).

Table 3

r1 and r2 values of the copolymers.

PolymerMethodr1r2r1.r2
FR1.53±0.100.76±0.161.16
Poly(DCP-co-HEA)KT1.67±0.130.58±0.050.96
ex-KT1.65±0.130.6±0.080.99
FR1.1±0.060.66±0.160.73
Poly(DCP-co-S)KT1.25±0.160.45±0.130.56
ex-KT1.31±0.110.49±0.160.64

TGA spectra of poly(DCP): •; poly(DCP-co-HEA): ♦ and poly(DCP-co-S): ▄.

Table 4

TGA, molecular weight and UV data of the polymers.

PolymerTGAMolecular weightUV data
1st [°C]2nd [°C]Mn × 103Mw × 103Mw/MnAr. C=CVinyl C=C
Poly(DCP)3154301.92.91.8265315
Poly(DCP-co-HEA)3304402.53.81.6260315
Poly(DCP-co-S)3204301.93.11.7260315

Shift in the UV absorbance spectrum of poly(DCP) after irradiation period of 0 s to 1500 s.

Shift in the UV absorbance spectrum of poly(DCP-co-S) after irradiation period of 0 s to 1500 s.

Shift in the UV absorbance spectrum of poly(DCP-co-HEA) after irradiation period of 0 s to 1500 s.

Effect of UV light on DCP type polymers.

Rate of disappearance of >CH=CH< of ♦: poly(DCP); ▴: poly(DCP-co-S); ▄: poly(DCP-co-HEA).

Table 5

Rate of disappearance of the olefinic bond.

I.TPoly(DCP)Poly(DCP-co-HEA)Poly(DCP-co-S)
A (310 nm)C [%]A (316 nm)C [%]A (312 nm)C [%]
01.70900.80402.7030
601.6085.90.69513.52.6412.2
1801.53210.30.67116.52.40211.1
3001.46814.10.64419.92.13021.2
6001.28624.70.48040.22.04224.5
9001.17631.20.35755.61.55642.4
12001.04338.90.18876.61.05461.0
15001.04039.20.00599.30.99263.3

IT = irradiation time in seconds, A = absorbance value and C = crosslinking percentage.

DOI: https://doi.org/10.1515/msp-2016-0117 | Journal eISSN: 2083-134X (formerly 2083-124X) | Journal ISSN: 2083-1331
Journal RSS Feed
Language: English
Page range: 834 - 844
Submitted on: Apr 17, 2016
Accepted on: Oct 14, 2016
Published on: Dec 19, 2016
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Keywords:
chalcone,
acrylate,
reactivity ratio,
photocrosslinking,
copolymer
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2016 J. Suresh, S. Karthik, A. Arun, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 34 (2016): Issue 4 (December 2016)
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