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Iranian Polymer Journal : Volume 26, Issue 12, December 2017

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Synthesis and characterization of maleylated cellulose-g-polyacrylamide hydrogel using TiO$_{2}$ nanoparticles under sunlight

Content Provider	Springer Nature Link
Author	Kaboudin, Babak Kazemi, Foad Allahyari, Elham Mohamadnia, Zahra
Copyright Year	2017
Abstract	Graft polymerization onto the cellulose is one way to produce semisynthetic copolymers and semiconductors were hardly used as initiators. Maleylated cellulose (MC) with different degree of carboxyl groups was synthesized and degree of carboxyl groups was determined using titration method. Then the graft copolymers of acrylamide (AM) on MC were synthesized by titanium dioxide semiconductor photoinitiator in aqueous suspension under sunlight. The effect of different parameters, such as the degree of carboxyl groups, degassing of atmosphere, reactor type, light source, MC/AM ratio, and initiator concentration, was evaluated in the synthesis of graft copolymers. MC with a high degree of carboxyl groups about 2.8 mmol g$^{−1}$ was selected for graft photopolymerization. Maximum monomer conversion (55%) for Maleylated cellulose-g-polyacrylamide (MC-g-PAM) was achieved with 0.5 mg TiO$_{2}$, MC/AM = 0.056, argon atmosphere, sunlight source, and double quartz tube reactor. The maximum amount of equilibrium swelling (41 g g$^{−1}$) was achieved for MC-g-PAM with 34% monomer conversion. The resulting graft copolymers were characterized by FT-IR, SEM, and TGA. Synthesis of MC-g-PAM using TiO$_{2}$ nanoparticles (NPs) as the initiator was done successfully that shows the TiO$_{2}$ NPs are useable in graft polymerization of acrylamide monomers onto the MC under sunlight.
Starting Page	663
Ending Page	672
Page Count	10
File Format	PDF
ISSN	10261265
Journal	Iranian Polymer Journal
Volume Number	26
Issue Number	9
e-ISSN	17355265
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-08-04
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polymer Sciences Graft copolymer Maleylated cellulose Photopolymerization Polyacrylamide Swelling properties Ceramics, Glass, Composites, Natural Materials Titanium dioxide
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Chemical Engineering Polymers and Plastics

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