Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India.
Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India.
Carbohydr Polym. 2018 Feb 1;181:862-870. doi: 10.1016/j.carbpol.2017.11.066. Epub 2017 Nov 22.
A novel thermally stable hydrolysed carboxymethyl cellulose-g-poly(sodium 1-hydroxy acrylate) i.e. CMC-g-PNaHA graft copolymer was synthesized from the CMC and vinyl monomer 5-methylene-2-isopropyl-1,3-dioxolan-4-one (MD) in an aqueous medium using an initiator followed by transformation of resulting CMC-g-PMD via alkaline hydrolysis. The graft copolymerization is confirmed by the Fourier transform infrared spectroscopy (FT-IR), Nuclear magnetic resonance spectroscopy (NMR) and X-ray diffractometer (XRD). The influence of the CMC and PNaHA content on the properties of the resulting hydrolysed CMC-g-PNaHA graft copolymer was investigated. In comparison with the PNaHA polymer, the resulted hydrolysed CMC-g-PNaHA grafted copolymer has improved thermal stability, water absorption properties, viscosity and weight-average molecular weight.
一种新型热稳定水解羧甲基纤维素-接枝聚（1-羟基丙烯酸钠），即 CMC-g-PNaHA 接枝共聚物，是由 CMC 和乙烯基单体 5-亚甲基-2-异丙基-1,3-二恶烷-4-酮（MD）在水溶液中使用引发剂合成的，然后通过碱性水解将得到的 CMC-g-PMD 转化。接枝共聚通过傅里叶变换红外光谱（FT-IR）、核磁共振光谱（NMR）和 X 射线衍射仪（XRD）得到证实。研究了 CMC 和 PNaHA 含量对所得水解 CMC-g-PNaHA 接枝共聚物性能的影响。与 PNaHA 聚合物相比，所得水解 CMC-g-PNaHA 接枝共聚物具有改善的热稳定性、吸水性、粘度和重均分子量。
