Process for producing a modified styrene polymer

Details Process for producing a modified styrene polymer Process for producing a modified styrene polymer

1988-12-22

1990-03-27

Lilling, Herbert J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525106, 5253261, 5253333, 5253334, 5253335, 525340, 525342, 525343, 525344, 525350, 525353, 525354, 5253595, 5253596, 525366, C08F 800, C08F 842, C08F 1212

Patent

active

049121707

ABSTRACT:
This invention relates to a p-methyl styrene polymer represented by the following formula: ##STR1## Z denotes a group such as a functional group. Poly p-methylstyrene (PPMS) is lithiated by reaction with n-butyllithium. The lithiated PPMS is used to prepare polymers containing functional groups. As an example, a solution of PPMS (MW 260,000), 1.0 g in 20 ml of cyclohexane, was reacted with n-butyllithium, 8.5 mmol, and tetramethylethylenediamine, 8.7 mmol, for 20 hours to obtain a precipitate. The precipitate was dissolved in THF, and CO.sub.2 was blown into the solution. The solution was washed with an aqueous solution of HCl and dropped into methanol to obtain a solid polymer having carboxyl group functionality.

REFERENCES:
patent: 2572557 (1951-10-01), Butler
patent: 2694702 (1954-11-01), Jones
patent: 3234196 (1966-02-01), Leavitt
patent: 3427364 (1969-02-01), Shaw et al.
patent: 4029706 (1977-06-01), Crosby
patent: 4230836 (1980-10-01), Canterino

Affiliated with

Also associated with

Rating

Process for producing a modified styrene polymer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing a modified styrene polymer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing a modified styrene polymer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1651706