Homework Soursei List several advantages and disadvantages of using transpa
(i) List several advantages and disadvantages of using transparent polymeric (plastic) materials foreyeglass lenses.
(ii) Suggest several properties (in addition to being transparent) that are important for this application.
(iii) Suggest three synthetic polymers (chosen from those mentioned during lectures) that may becandidates for eyeglass lenses.
(iv) Which of your suggestions in (iii) would be the best? Describe the molecular configuration andthe microstructure of the polymer, and the likely processing method for manufacturing the lens.
(i) List several advantages and disadvantages of using transparent polymeric (plastic) materials foreyeglass lenses.
(ii) Suggest several properties (in addition to being transparent) that are important for this application.
(iii) Suggest three synthetic polymers (chosen from those mentioned during lectures) that may becandidates for eyeglass lenses.
(iv) Which of your suggestions in (iii) would be the best? Describe the molecular configuration andthe microstructure of the polymer, and the likely processing method for manufacturing the lens.
Solution
(i)
Advantages of using transparent polymeric materials for eyeglass lenses are -
The disadvantages are -
(ii)
Several properties important for this application are -
(iii)
Three synthetic polymers that can be used for eyeglass lenses are -
(iv)
The polymer for eyeglass lenses would be Polycarbonate as it is very impact resistant.
