Polystyrene beads those are used as ion-exchangers for the water treatment are prepared by

----------- is used as de-emulsifier in emulsion polymerization.

Nylon 6,6 is obtained by ------------------- polymerisation.

Phenol is removed during the formation of --------------.

------------------------- foams are mainly used in pillows and mattresses.

Combination of ----------------- and diol or triol produces polyurethane.

New class of materials which consists of two or more micro-constituents are called as ---------------.

Composites consist of -------- important constituents.

----------- phase is the continuous body constituent, which encloses the composite.

----------------- phase is the structural constituent, which determines the internal structure of composite.

The fibre reinforced polymer composites constitute more than ----------- (by weight) of the total composites used in various industries.

It is difficult to manufacture --------------- FRP.

----------- is used for manufacture of recreational equipments.

--------- is used in components of engine parts in automobile industry, and components of turbine engine.

Due to the ---------- property, rubbers are called elastomers.

Based on the source, there are ----------- type of rubbers.

Natural rubber consists of basic materials a latex, which is a dispersion of --------------------.

An example of synthetic rubber is --------

The addition of --------------- to the natural rubber with heating is called vulcanization.