Synthesis of Triblock Polycarboxylate Superplasticizers with Well-Defined Structure and Its Dispersing Performance in β-Hemihydrate Gypsum
Round 1
Reviewer 1 Report
The paper will be ready for publication after major revision according to the attached pdf.
Comments for author File: 
Comments.pdf
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 2 Report
The paper’s topic is using polycarboxylate superplasticizers to modify building gypsum. The problem is interesting. The fluidizing admixtures are commonly used in cement composites, like cement concrete, but there is little reported research about their use in other building materials, including gypsum. The experiment was, in general, adequately designed and conducted, and the discussion and conclusions presented in the paper are well justified.
The Authors are asked to complete the information about the tested gypsum material – if it was a mortar, the content of the sand (or other filler) is needed; if no sand was used, it was not the mortar, just the gypsum paste. Also, the effect of using superplasticizers in gypsum mix should be more precisely characterized. What was the lowered water-to-HH ratio?
The statement from the Introduction that: ”PCs are generally random copolymer synthesized” is somewhat debatable and needs support by suitable citation.
With the above minor amendments, the paper can be published in the journal Molecules.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
Accept in present form.
