Preparation of Poly Acrylic Acid-Poly Acrylamide Composite Nanogels by Radiation Technique.

Purpose: Nanogel, a nanoparticle prepared from a cross-linked hydrophilic polymer network, has many biomedical applications. A radiation technique has recently been introduced as one of the appropriate methods for the preparation of polymeric nanogels due to its additive-free initiation and easy control procedure.

Methods: We have investigated the formation of nano-sized polymeric gels, based on the radiation-induced inter- and intra-molecular cross-linking of the inter-polymer complex (IPC) of polyacrylamide (PAAm) and polyacrylic acide (PAAc).

N-(4-Meth-oxy-2-nitro-phen-yl)-N-(methyl-sulfon-yl)acetamide.

In the title compound, C(10)H(12)N(2)O(6)S, the nitro group is twisted slightly out of the plane of the aromatic ring, forming a dihedral angle of 20.79 (1)°. In the crystal, the mol-ecules arrange themselves as a chain along the a axis through inter-molecular C-H⋯O inter-actions.