Effect of Molecular Weight on Packing during Latex Film Formation

2001 ◽  
Vol 234 (1) ◽  
pp. 72-78 ◽  
Author(s):  
Ertan Arda ◽  
Önder Pekcan
Keyword(s):  
Molecular Weight ◽  
Film Formation ◽  
Latex Film ◽  
Latex Film Formation

scholarly journals Tracking Hydroplasticization by DSC: Movement of Water Domains Bound to Poly(Meth)Acrylates during Latex Film Formation

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2500
Author(s):  
Sebastian M. Dron ◽  
Maria Paulis
Keyword(s):  
Itaconic Acid ◽  
Water Resistance ◽  
Film Formation ◽  
Latex Film ◽  
Water Molecules ◽  
Acrylate Copolymer ◽  
Volatile Organic ◽  
Minimum Film Formation Temperature ◽  
Latex Film Formation ◽  
Formation Step

The film formation step of latexes constitutes one of the challenges of these environmentally friendly waterborne polymers, as the high glass transition (TG) polymers needed to produce hard films to be used as coatings will not produce coherent films at low temperature. This issue has been dealt by the use of temporary plasticizers added with the objective to reduce the TG of the polymers during film formation, while being released to the atmosphere afterwards. The main problem of these temporary plasticizers is their volatile organic nature, which is not recommended for the environment. Therefore, different strategies have been proposed to overcome their massive use. One of them is the use of hydroplasticization, as water, abundant in latexes, can effectively act as plasticizer for certain types of polymers. In this work, the effect of three different grafted hydroplasticizers has been checked in a (meth)acrylate copolymer, concluding that itaconic acid showed the best performance as seen by its low minimum film-formation temperature, just slightly modified water resistance and better mechanical properties of the films containing itaconic acid. Furthermore, film formation monitoring has been carried out by Differential Scanning Calorimety (DSC), showing that itaconic acid is able to retain more strongly the water molecules during the water losing process, improving its hydroplasticization capacity.

An overview of polymer latex film formation and properties

2000 ◽  
Vol 86 (3) ◽  
pp. 195-267 ◽  
Author(s):  
P.A. Steward ◽  
J. Hearn ◽  
M.C. Wilkinson
Keyword(s):  
Film Formation ◽  
Latex Film ◽  
Latex Film Formation ◽  
Polymer Latex
Sign in / Sign up

Export Citation Format

Share Document