Process for producing polymers with a polydispersity optionally

Details Process for producing polymers with a polydispersity optionally Process for producing polymers with a polydispersity optionally

1990-05-11

1992-06-30

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 59, 526 61, 526212, 5263291, 526338, 526335, 526346, C08F 404, C08F 428

Patent

active

051264153

ABSTRACT:
The invention relates to a process for preparing polymers, with a polydispersity optionally approaching the theoretical polydispersity and substituted by functional groups in .alpha.,.omega.-positions, via radical polymerization of radically polymerizable monomers and using one or more initiators. In compliance with this process the degree of polymerization is maintained at the desired value by continuous elevation of the temperature.
In case of a given heat program, the process of the invention renders possible to increase the conversion in producing polymers without the deterioration of the polydispersity.

REFERENCES:
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patent: 4746715 (1988-05-01), Dworczak et al.
Reed, Journal of Polymer Science, Polymer Chemistry Edition, vol. 19, 1863-1866 (1981).
Ghatgl et al., Journal of Polymer Science, Polymer Chemistry Edition, vol. 2, 3591-3595 (1983).

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