Delta Agrochemicals Company, Giza, Egypt.
Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming, China.
Int J Biol Macromol. 2018 Sep;116:530-536. doi: 10.1016/j.ijbiomac.2018.05.062. Epub 2018 May 17.
Graft Copolymer resulting from polymerization of acrylic acid from chitosan is non-coherent, brittle and exhibit modest swelling in water, which limits its application. Chitosan-cellulose hybrid was initially prepared and novel polymeric ligand ((CTS/Cell)-g-PAA) derived from grafting polymerization of acrylic acid from this hybrid was fabricated and investigated using fourier transform infrared (FTIR) and Scanning electron microscopy (SEM). Also, the graft copolymer exhibited high mass transfer under a wide range of pH values due to its elevated hydrophilicity in addition to a good mechanical strength with respect to the comparable graft derived from chitosan as sole backbone for the grafting. The high content of different oxygen and nitrogen-containing groups in a crowded chemical atmosphere along with the high swelling qualified the graft to act as very efficient polymeric ligand with high capacity of removal of metal ions from water under broad conditions. The polymeric ligand performed outstandingly and competitively in the removal of water hardness even in presence of other interfering ions.
由壳聚糖聚合得到的接枝共聚物丙烯酸是不连贯的，脆性的，在水中表现出适度的溶胀，这限制了它的应用。首先制备壳聚糖-纤维素杂化体，然后从该杂化体接枝聚合丙烯酸制备新型聚合物配体（（CTS/Cell）-g-PAA），并使用傅里叶变换红外（FTIR）和扫描电子显微镜（SEM）进行研究。此外，由于接枝共聚物具有较高的亲水性，在很宽的 pH 值范围内都表现出较高的传质能力，并且相对于仅作为接枝骨架的壳聚糖，具有较好的机械强度。在拥挤的化学环境中，高含量的不同含氮和含氧基团以及高溶胀性使接枝共聚物能够作为非常有效的聚合物配体，在广泛的条件下从水中去除金属离子。该聚合物配体在去除水硬度方面表现出色，即使在存在其他干扰离子的情况下也是如此。
