What are polyacrylamide block copolymers used for?

Polyacrylamide block copolymers has been extensively used in many fields of science and technology due to their water solubility, biocompatibility and…

How do polyacrylamides respond to environmental stimuli?

Furthermore, polyacrylamides (PAMs) can response to some environmental stimuli such as temperature, pH, solvent and redox processes, and their smart properties can be tailored by copolymerization of appropriate comonomers [, , ].

How can a copolymer sample be characterized?

As we have shown, some characteristics of the copolymer sample can be determined by manual peak assignations, but as other complex chemical systems, the copolymers formed can be characterized by various distributions (e.g. molecular weight or block length distributions).

Can Mara be used to analyze amphiphilic block copolymers?

In this paper, we apply MARA, as a novel approach for the analysis of PAM-based amphiphilic block copolymers, particularly emphasizing its strength in the fast visual assessment of the main characteristics of copolymer composition. 2. Experimental 2.1. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS)

How are diblock copolymers prepared by reversible addition/fragmentation chain transfer polymerization?

Diblock copolymers by Reversible Addition/Fragmentation Chain Transfer (RAFT) polymerization were prepared based on the method described by Gody et al. [31, 32]. For the first block, the chain transfer agent (CTA), monomer (NAM), initiator and the solvents with a magnetic stirrer were introduced into a test tube of 5 mL.

Why do we need a visual evaluation of Nam/nipa diblock copolymers?

This simplicity and speed can especially be favorable in the quality control of copolymer synthesis and manufacture. After the visual evaluation, an accurate and comprehensive characterization of the various NAM/NIPA diblock copolymers were performed. Furthermore, the MALDI-MS – MARA results were supported by NMR experiments.